JPH0114608Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a display device for displaying the remaining amount of welding wire in a pail pack.

If the amount of welding wire is small, it is wound around a bobbin, or if the amount is large, it is stored in a pail pack. The pail pack is a cylindrical body made of metal or cardboard with a bottom. When in use, the lid is removed, a conical wire take-out device is fitted, and the welding wire is pulled out through the device to be used for welding. Since these are opaque bodies, the welding wire inside cannot be seen, and in order to know the remaining amount, the wire take-out device must be removed, which is cumbersome. Therefore, the present invention aims to make it possible to visually check the remaining amount of welding wire in the pail pack from the outside using a simple means. Next, the present invention will be explained with reference to examples.

FIG. 1 shows an embodiment of the present invention, in which 1 is a welding pail pack consisting of an outer cylinder 2 and an inner cylinder 3, between which a coil 4 of welding wire W is housed. To avoid twisting when the wire W is pulled out, the coil 4 is twisted in advance by about 360 degrees per turn in the opposite direction to the twist that occurs when the wire W is pulled out, so that the wire W in the coil 4 always expands. A pressing member 5 is placed on top of the coil 4 to suppress this. Note that this force to expand acts not only upward but also outward in the radial direction, so the coil 4 extends toward the outer cylinder 2 and creates a gap between it and the inner cylinder 3 as shown in the figure. The inner cylinder 3 may be omitted. Reference numeral 11 denotes a wire entanglement prevention ring attached to the upper end of the inner cylinder, and is used as necessary. 6
is a wire take-out device which has a conical shape and is attached to the upper open end of the outer cylinder 2 by a fastening band 7. When shipped from the factory, there is a disc-shaped lid (not shown) on the top of the outer cylinder 2, and this lid is removed at the welding site.
The wire W is pulled out from inside, and the wire is inserted through the wire guide hole and the conduit tube 8, etc. at the top of the wire take-out device 6, and then the wire take-out device 6 is attached to the upper part of the outer cylinder as shown.

The wire W is successively drawn out from the upper part of the coil 4 through between the central opening of the holding member 5 and the inner cylinder 3. As mentioned above, the coil 4 is constantly trying to expand, and even through the gap between the presser member 5 and the inner surface of the outer cylinder 2, the wire tends to jump up. Of course, if such a jump occurs, it is difficult to draw out the wire W smoothly. A tape 9 made of a narrow strip of cloth or a plastic sheet is used to prevent this, and its lower end is attached (for example, pasted) to the lower inner surface of the outer tube 2, and the tape 9 is attached to the donut-shaped presser member 5. The upper end is attached to the upper inner surface of the outer cylinder 2 through the hole 10. If such tapes 9 are provided at a plurality of locations, the wire will be prevented from jumping up through the space between the outer periphery of the presser member 5 and the inner surface of the outer cylinder, making it impossible.

Although not shown, a wire feeding device, a welding torch, etc. are provided at the tip of the conduit tube 8, and the wire W is fed to the welding part through these. As the welding progresses, the wire W in the pail pack 1 is successively pulled out from the upper part of the coil 4 and gradually decreases, and the holding member 5 descends. By this downward movement, the tape 9 is gradually pulled out from the hole 10 of the holding member (of course, the tape does not move, but this is the case relatively). Incidentally, since both the outer cylinder 2 and the wire take-out device 6 are opaque bodies, the state in which the wires in the pail pack are reduced cannot be seen from the outside.
When performing a large amount of welding, the amount of wire W used is large, and in order to increase welding efficiency, it is desirable to start feeding wire from a new pail pack as soon as the wire in the pail pack is used up, or to start welding anew. It is desirable to check how much wire is left in the pail pack when starting, and for these purposes it is effective and meaningful to be able to easily check the amount of wire remaining in the pail pack from the outside.

Therefore, in the present invention, two slits 13 and 13' are provided in the conical body of the wire take-out device 6, and a string 12 made of cloth or the like is attached to the holding member 5 by a magnet piece attached to one end of the string 12, and the other end of the string 12 is attached to the holding member 5. slit 1
A part of the string 12 is made visible from the outside by being taken out to the outside of the pale pack through the slit 13' and then put back into the inside through the slit 13', and a stopper 14, which is slightly longer than the slit 13' and also serves as a heavy cone, is attached to the other end. Since the magnet piece 17 is attracted to the welding wire coil 4, which is a magnetic material, through the holding member 5, it is securely fixed on the holding member and does not slip and change its position. Also, one side of the string 12 (the side visible from the outside)
A scale has been added to the scale. In this way, the wire W is pulled out as welding progresses, and as the height of the coil 4 decreases, the holding member 5 descends, and as the string 12 moves, the scale of the string exposed to the outside between the slits 13 and 13' changes its display one after another. That is, the remaining amount of welding wire in the pail pack can be indicated by the scale on the string appearing between the slits 13, 13'.

For example, the scale of the string 12 is displayed as full or empty in color.
Figure 2 shows an example of this.If part A corresponding to the sky is red, the next part B is yellow, and the next part C is blue. If blue disappears and yellow, there is little left, and if yellow disappears and red, there is almost no left, etc. Of course, this scale may be displayed numerically.

To attach the string 12, as described above, when removing the upper lid of the pail pack 1 and fitting the wire take-out device 6, the magnet 17 at one end of the string 12 is attracted to the presser member 5, and the other end of the string 12 is attached to the wire take-out device. Take it out through the slit 13 provided in the conical body of the device 6, and put it inside again through the slit 13'.
Just fix it to the upper open end of.

In the embodiment shown in FIG. 1, a slit for exposing and visually supporting a portion of the string inside the pail pack is provided in the conical body of the wire take-out device, but it may also be provided in the outer cylinder body of the pail pack. Alternatively, the slit may not be provided and the string may be supported by a support as shown in the embodiment of FIG. In FIG. 3, reference numeral 15 denotes a support tool in which the wire take-out device 6 is partially cut out and attached to the upper end of the outer cylinder 2 of the pale pack, and a string 12 is attached to the support tool.
A part of the string is hung so that it can be seen from the outside.

In the above embodiment, a part of the string with one end attached to the presser member was exposed to the outside for support, and the other end was placed inside the pail pack again. It may also be allowed to hang down. In addition to the above-mentioned method of attaching one end of the string to the holding member, there are various methods such as using a simple weight, or directly attaching the string to the holding member with adhesive tape.

As explained above, according to the present invention, the remaining amount of welding wire in the pail pack can be easily checked from the outside by a simple means of visually supporting a part of the scaled string attached to the holding member. It can be done and is very effective.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention, and a portion thereof is shown in cross section. FIG. 2 shows an embodiment of the string of the present invention, and FIG. 3 shows another embodiment of the present invention. In the drawing, W is a welding wire, 1 is a pale pack, 2 is an outer cylinder, 4 is a coil, 5 is a holding member, 6 is a wire take-out device, 12 is a string, 13 and 13' are slits, 14 is a stopper, and 17 is a It is a piece of magnet.

Claims (1)

[Scope of utility model registration request] One end of a string with a scale is attached to a presser member placed at the upper end of a welding wire coil of a pail pack that accommodates a welding wire, and a part of the string is supported visually from the outside of the pail pack, further comprising: A remaining amount display device for welding wire, characterized in that a tape is vertically hung on the outer cylinder of a pail pack through a hole provided in a member.