KR200184422Y1 - Device for holding welding wires - Google Patents

Abstract

The present invention relates to a fail pack loaded with a welding wire, and more particularly, to a fixing device for stably maintaining a welding wire loaded in a fail pack.

The welding wire fixing device of the present invention for fixing a welding wire wound and coiled in a fail pack is provided with a fixing member disposed on an upper surface of a winding layer of the welding wire loaded in a fail pack, and the fixing member and the fail pack. The elastic member is connected between the inner bottom of the tension state.

Accordingly, the elastic member pulls the fixing member downward, and the fixing member pressurizes the welding wire wound from the top to the bottom. It can be fixed stably without problems.

Description

Device for holding welding wires

The present invention relates to a fail pack loaded with a welding wire, and more particularly, to a fixing device for stably maintaining a welding wire loaded in a fail pack.

In general, as the welding process is automated, such as using a welding robot, there is a necessity to stably and continuously supply the welding wire to the welding apparatus in order to secure the continuity, precision, and stability of the welding.

In order to cope with the necessity of supplying the welding wire continuously, the welding wire had to be large-capacity, and moreover, a fail-pack product having the welding wire in the fail pack appeared.

As described above, the product having the welding wire in the fail pack not only improved work efficiency at the welding site, but also contributed to the automation of the welding process.

However, in order to load the welding wire in the fail pack, the welding wire must be loaded in a manner of forcibly winding while applying a predetermined amount of torsional stress. Thus, when the winding is completed by winding the welding wire, The lower part keeps the state wound by the self-weight of the whole winding layer stably, but the upper part of the winding layer has a characteristic of being unwound by the force which tries to return to an original state against the torsional stress given to the welding wire.

Therefore, in order to keep the upper part of the winding layer in a stable winding state similarly to the lower part of the winding layer, it is necessary to fix the upper part of the winding layer with a force that can sufficiently counteract the torsional stress applied initially.

As such, various methods have been conventionally used to fix the welding wire wound and loaded in the fail pack.

For example, there is a method of fixing the welding wire loaded in the fail pack by covering the top of the welding wire with the wire extraction jig and pressing down the wire extraction jig with the lid of the fail pack.

As another example, there is a method of tying and fixing the long welding wire using a string connected from the inner bottom of the fail pack.

As a more specific example, when the shape of the fail pack is divided into an inner cylinder and an outer cylinder, a welding wire wound in the fail pack is fixed by using a sponge or corrugated cardboard with a little hardening in the space between the inner cylinder and the outer cylinder. There is a way.

As described above, the welding wire wound and loaded in the pail pack is pressed by using a lid, and the wire welding jig is pressed and fixed by pressing, or the welding wire wound and held by a string is tied and fixed or inner tube. And in the fail pack consisting of an outer cylinder when the welding wire is fixed to the space between the inner cylinder and the outer cylinder by inserting a sponge or cardboard, the following problems occur.

In other words, after manufacturing a fail-packed product which is wound up while applying a torsional stress to the welding wire and transports the fail-pack, the welding wire wound by the self-weight of the welding wire and by vibration during transportation A change occurs in height, and after transportation, the height of the winding layer becomes lower than the height of the winding layer at the time of manufacture, and a space is formed on the top of the winding layer, thereby weakening the fixing ability by the fixing method as described above. . In this way, when the fixing ability is weakened, the existing problem that the winding of the welding wire in the upper portion of the winding layer is about to be unwound by the force to return to the original state against the torsional stress again occurs.

As described above, when the winding of the welding wire on the top of the winding layer in the fail pack is released, the welding wire located on the winding layer is twisted. When the welding wire is twisted, the feeding of the welding wire to the welding device is stopped or Feeding defects such as intermittent feeding are generated, and further, the arc stability decreases, resulting in poor weldability as a whole.

In addition, in the case of short-distance movement of the fail-packed short-distance movement, the above problems do not appear much, but long distance inland transportation or transportation by ship is essential for long-distance movement, especially when the fail-pack is transported overseas. As a result, the vibration is greatly and continuously generated, and thus the problem is greatly highlighted, such as a decrease in the fixing ability of the welding wire wound and loaded in the fail pack as described above.

As another example, there is a method of fixing a welding wire wound in a fail pack by using a triangular bar in a pail pack having only an outer cylinder without an inner cylinder, but after a long time due to a large load concentration at the center of the triangular bar. Since the triangular bar fails to fix the welding wire with the same force as the initial one, a problem similar to the above occurs.

The present invention is to solve the above problems, the object is to arrange the fixing member on the upper portion of the wire extraction jig, by connecting the elastic member in a tension state between the fixing member and the bottom of the inner side of the fail pack, The welding wire wound and loaded in the fail pack can be stably fixed at the same time as the initial loading and at all times.

Another object of the present invention is to form the elastic member used to correspond to the winding height of the welding wire is built in the fail pack in various standards, to prevent the weakening of the elastic force of the elastic member over time, the winding layer of the welding wire This ensures that even loads are always applied, improving the convenience and productivity of the work.

Another object of the present invention is to form a fixed member in a double structure of the inner pipe and the outer pipe to make the length of the fixing member like an antenna to be variable to facilitate the long and fixed work of the welding wire, while the inside of the fixing member By forming a stopper on either or both of the pipe or the outer pipe, the length of the fixing member is prevented from being arbitrarily changed.

Figure 1a is a partially cut perspective view showing a welding wire fixing device of the present invention for fixing the welding wire wound in the fail pack.

FIG. 1B is a cross-sectional view of the welding wire fixing device of FIG. 1A; FIG.

Figure 2 is a cross-sectional view showing an embodiment of a fixing member of the welding wire fixing device.

3A and 3B are front views showing another embodiment of the fail pack inner cylinder.

※ Explanation of code about main part of drawing ※

1: Fail pack 2: Fail pack outer cylinder

3: wire drawer jig (Osae member) 4: lid pack

5: Fail pack inner cylinder 5a, 5a ', 5b, 5b', 5c, 5c ': slot

6: fixing member 6a, 6b: outer and inner pipe

7: elastic member 8: rim member

The welding wire of the present invention for stably fixing the welding wire wound and coiled in the fail pack regardless of before or after transportation of the fail pack product and without problems such as distorting or twisting of the welding wire on the upper part of the winding layer. The wire fixing device is characterized by consisting of a fixing member disposed on the upper surface of the winding layer of the welding wire mounted in the fail pack, and an elastic member connected in tension between the fixing member and the inner bottom of the fail pack.

In particular, the fixing member is formed of an antenna type structure of the outer pipe and the inner pipe to be variable in length, while the stopper is formed as a stopper on one of the outer pipe and the inner pipe, and at least one protrusion is formed on the other and the groove is formed on the other. By making the protrusions and the grooves catch with each other, the length of the fixing member can be kept constant to a predetermined length.

In addition, the elastic member is formed in various sizes according to the winding weight of the welding wire wound and loaded in the fail pack and the corresponding winding height so as to provide a uniform load regardless of the change in the winding height generated during transportation of the fail pack product. To work.

As described above, when the welding wire fixing device of the present invention is used, even if the winding height of the welding wire wound in the fail pack changes and decreases due to vibration generated during transportation of the fail pack product, the elastic force of the elastic member decreases. The holding member always presses the welding wire from top to bottom. Accordingly, the force to be unwrapped or disturbed by the torsional stress given at the time of winding up the winding layer is continuously suppressed even after the initial winding or the transportation, and the initial winding quality can be continuously maintained.

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

1A and 1B are partially cut and cross-sectional views showing one embodiment of a welding wire fixing device of the present invention for fixing a welding wire wound in a fail pack.

First, the fail pack 1 is formed of an inner cylinder 5 in which the outer cylinder 2 and two longitudinal slots 5a and 5a 'are perforated to face each other, and are twisted between the outer cylinder 2 and the inner cylinder 5. The welding wire W subjected to the stress is wound up and extended.

The upper portion of the welding wire W wound and held between the outer cylinder 2 and the inner cylinder 5 is covered with a wire extraction jig 3, and the fixing member 6 is provided in the slots 5a and 5a ′ of the inner cylinder 5. ) So that the fixing member 6 is disposed above the wire drawing jig 3.

At this time, when the fixing member 6 is formed in the antenna type, the fixing member 6 is pulled out in the antenna type to increase the length and inserted into the slots 5a and 5a '.

Subsequently, by installing the elastic member 7 in a tension state between the center portion of the body of the fixing member 6 and the inner bottom portion of the fail pack 1, the fixing member 6 is made use of the elastic force of the elastic member 7. ) To pressurize the wire take-out jig 3 at all times, thereby to pressurize the welding wire W on which the wire take-out jig 3 is wound, and fix it in the fail pack 1.

At this time, both ends of the elastic member (7) form a ring, respectively, the ring formed on the bottom of the fail pack (1) and the body of the fixing member 6 directly or in the center of the body of the fixing member (6) Hook each of the hooks formed in the center.

As described above, when the welding wire W loaded in the fail pack 1 is fixed by the fixing device of the present invention comprising the fixing member 6 and the elastic member 7, the welding wire W is wound. Taken and transported the fail-pack (1) of the winding layer of the welding wire (W) loaded in the fail-pack (1) due to physical factors such as the self-weight of the welding wire (W) and vibration during transportation. Even if the height is lower than the height of the winding layer when the welding wire W is initially loaded in the fail pack 1, the fixing member 6 always keeps the wire drawing jig 3 due to the elastic force of the elastic member 7. Pressurizing) does not form a space in accordance with the change of the height of the winding layer on the top of the winding layer of the welding wire (W) loaded in the fail pack (1), and always has a constant fixing ability to the welding wire (W) maintain.

Therefore, the force to restore the original state against the torsional stress initially applied to the welding wire (W) on the winding layer is not applied, and thus the welding wire (W) is disturbed or twisted on the winding layer. This does not occur, and no feeding failure occurs when the welding wire W is continuously fed during the welding process.

Furthermore, since the defects generated by scratching or twisting the welding wire W are not formed on the surface of the welding wire W, there is no possibility that problems such as arc instability occur during the welding process.

An embodiment of the fixing member will be described with reference to FIG. 2.

The fixing member may be configured to be variable in length by connecting the outer pipe 6a and the inner pipe 6b of high strength and light material to each other in the form of an antenna, in addition to having a general strip-shaped bar or a U-shaped bar.

At this time, the fixing member is provided with a stopper. The outer pipe 6a is provided with a protrusion at a predetermined position on the inner wall, and the inner pipe 6b has a groove at a predetermined position on the outer wall to fix the fixing wire for welding. The protrusions and the grooves are caught by each other when extended to a predetermined length for use as part of the device, so that the fixing member can maintain the variable length in spite of external factors such as vibration during fail pack transportation. In this case, another groove may be formed in the outer wall of the inner pipe 6b in the longitudinal direction so that the inner pipe 6b can be slidably smoothly inside the outer pipe 6a.

Of course, contrary to the above, a method of forming a groove in the inner wall of the outer pipe 6a and forming a protrusion in the outer wall of the inner pipe 6b may be used.

Furthermore, in the above two cases, a plurality of protrusions are formed at predetermined intervals, or a plurality of grooves are formed at predetermined intervals, or a plurality of protrusions and grooves are respectively formed, so that the length of the fixing member may be respectively desired. It may be fixed by varying the length.

In addition, instead of the projections, a ball or the like may be formed to be sunk by the spring action and used as a stopper of the fixing member.

In addition to the above-described case, there will be various methods for varying the length of the fixing member and keeping the length of the fixed state constant regardless of external factors such as vibration.

Of course, if the inner cylinder of the pail pack is small, it is used without lengthening the fixing member, and if the inner cylinder is large, the fixing member is formed with an antenna type structure such that the fixing member is long. Regardless of the size, there is an advantage that it is easy to use.

In addition, the fixing member may be a face plate formed at both ends thereof, or may be formed crosswise.

Meanwhile, the elastic member constituting the welding wire fixing device together with the fixing member may have various forms.

For example, a coil spring as a representative elastic member may be used as used in the embodiment of the present invention, or an elastic band may be used.

As the other elastic member, any material can be used as long as it can sustain a predetermined elastic force, that is, a degree of elastic force that can sufficiently cope with the force to be released by the torsional stress.

The height of the winding layer, that is, the winding height is different depending on the weight of the welding wire mounted in the fail pack. The elastic member of the present invention uses one manufactured by standardizing to various sizes corresponding to the respective winding heights. It is manufactured to maintain the elastic force for a long time regardless of the winding height that changes according to the transportation.

Another embodiment of the slot formed in the inner cylinder will be described with reference to FIGS. 3A and 3B.

For example, by forming the slots 5b and 5b 'through the upper portion of the inner cylinder 5, a strip-shaped bar or the like of a general shape can be easily used as a fixing member, and the upper portion of the inner cylinder 5 can be penetrated. The formed slots 5c and 5c 'may be formed in the form of lightning to prevent the fixing member from escaping through the upper portion of the slot due to external factors such as vibration.

Of course, when the slot is formed as described above, it may be caught at the corner of the upper part of the upper part of the slot when the welding wire is drawn out. In this case, a rim member 8 or the like is installed on the upper part of the inner cylinder 5 so that the slot ( 5b, 5b '; 5c, 5c') may be blocked.

On the other hand, the fail pack can use the above-described welding wire fixing device even if it is composed of only the outer cylinder without the inner cylinder, and it is possible to use the above-described welding wire fixing device without the wire extraction jig. Will be self-evident.

Table 1 below shows the different winding heights according to the winding weight of the welding wire loaded in the fail pack and the tensile load required to stably fix the welding wire at this time.

Fail pack size Winding weight (kg) Winding height (mm) Elastic member tensile load (N) Communication 100 265 ± 5 55 to 58 150 350 ± 5 55 to 58 200 460 ± 5 55 to 58 250 575 ± 5 55 to 58 300 690 ± 5 55 to 58 bowl 250 395 ± 5 55 to 58 300 473 ± 5 55 to 58 350 520 ± 5 55 to 58 400 595 ± 5 55 to 58

When the welding wire fixed in the fail pack is fixed by using the welding wire fixing device of the present invention and when the welding wire is fixed by using the existing fixing device, the fixing ability according to the long distance movement and the elapse of time Comparative experiments were conducted in two forms.

Experimental Example 1

Experimental Example 1 relates to the change in the winding quality of the fail pack product due to the vibration during long-distance transportation in Korea using a van (land movement), and the results are shown in Table 2.

division product Winding height (mm) Winding layer change (mm) Spacing between winding layer and fixing member Winding state change of the upper winding layer Early after test After initial-test contrivance One 575 571 4 0 Good (no change) 2 572 567 5 0 Good (no change) 3 573 570 3 0 Good (no change) 4 521 518 3 0 Good (no change) 5 524 520 4 0 Good (no change) 6 520 516 4 0 Good (no change) Comparative product 7 574 570 4 2 Instability 8 572 567 5 3 Dishes and kinks 9 570 565 5 3 Dishes and kinks 10 524 520 4 2 Dishes and kinks 11 520 516 4 2 Instability 12 526 521 5 3 Dishes and kinks

Table 2 shows the difference between the initial winding height of the welding wire (W) loaded in the fail pack and the winding height after long distance transportation in Korea when using the welding wire fixing device of the present invention or the existing fixing device. However, in the case of using the welding wire fixing device of the present invention, there is no gap between the winding layer and the fixing member of the welding wire, as well as maintaining a close state, as well as conventional welding wires on the winding layer. This shows that no problem such as distorting or twisting occurs.

Experimental Example 2

Experimental Example 2 relates to the change in the winding quality of the fail pack product due to the vibration during long-distance overseas transportation using a truck (land transport)-ship (sea transport)-truck (land transport), the results are shown in Table 3. have.

division product Winding height (mm) Winding layer change (mm) Spacing between winding layer and fixing member Winding state change of the upper winding layer Early after test After initial-test contrivance One 580 576 4 0 Good (no change) 2 574 570 4 0 Good (no change) 3 577 574 3 0 Good (no change) 4 522 518 4 0 Good (no change) 5 519 515 4 0 Good (no change) 6 523 520 3 0 Good (no change) Comparative product 7 578 574 4 2 Instability 8 573 568 5 3 Dishes and kinks 9 574 570 4 2 Dishes and kinks 10 525 521 4 2 Dishes and kinks 11 522 517 5 3 Dishes and kinks 12 517 513 4 2 Dishes and kinks

Table 3 shows the difference between the initial winding height of the welding wire (W) loaded in the fail pack and the winding height after long-distance overseas transportation using the welding wire fixing device of the present invention or the existing fixing device. However, in the case of using the welding wire fixing device of the present invention, there is no gap between the winding layer and the fixing member of the welding wire, as well as maintaining a close state, as well as conventional welding wires on the winding layer. This shows that no problem such as distorting or twisting occurs.

The present invention arranges the fixing member on the top of the wire extraction jig, and connects the elastic member in a tension state between the fixing member and the bottom of the inner side of the fail pack, and is wound and loaded in the fail pack using the elastic force of the elastic member. Since the welding wire is fixed, it is possible to prevent the weakening of the fixing ability caused by physical factors such as self weight or vibration during transportation of the fail pack product.

In addition, since the elastic member of the standard corresponding to the winding weight, that is, the winding height of the welding wire loaded in the fail pack is used, the elastic force of the elastic member is prevented from being vibrated due to vibration and time, and at the same time, Uniform load is applied all the time, improving work convenience and productivity.

Furthermore, since the fixing member is formed of an antenna-type dual structure of the inner pipe and the outer pipe, the length of the fixing member is variable, thereby making it easy to mount and fix the welding wire. In addition, since the stopper is formed on either or both of the inner pipe and the outer pipe of the fixing member, the length of the fixing member can be prevented from being arbitrarily changed, thereby stably fixing the welding wire.

In particular, when the welding wire fixing device of the present invention is used as described above, it is possible to prevent occurrence of crushing or twisting of the welding wire on the upper part of the winding layer, and thus scratches such as scratches are generated on the welding wire. Since it is possible to prevent this, it is possible to ensure stable and continuous feeding of the welding wire, and further to ensure arc stability or stable weldability.

Claims (3)

In the welding wire fixing device for fixing a welding wire wound and coiled in a fail pack, A fixing member 6 disposed on an upper surface of the winding layer of the welding wire W mounted in the fail pack 1; Welding device, characterized in that consisting of an elastic member (7) connected in tension between the fixing member (6) and the inner bottom of the fail pack (1). The method of claim 1, The fixing member (6) is a wire fixed device for welding, characterized in that the length is variable by the antenna structure of the outer pipe (6a) and the inner pipe (6b). The method of claim 2, As a stopper of the fixing member 6, at least one protrusion is formed in one of the outer pipe 6a and the inner pipe 6b, and at least one groove is formed in the other, and the protrusion and the groove are caught by each other. A welding wire fixing device, characterized in that to maintain the length of the fixing member (6) to a predetermined length.