JPH0333731Y2 - - 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 it is a large amount, 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 10 is a welding pail pack consisting of an outer cylinder 12 and an inner cylinder 14, between which a coil 16 of welding wire W is housed. The wire W is twisted in advance by 360 degrees per turn in the opposite direction to the twist that occurs when it is pulled out, so that it does not twist when it is pulled out, and is made into a coil 16.
For this reason, the wire W of the coil 16 is constantly trying to expand, and a presser plate 18 is placed on top of the coil 16 to suppress this expansion. Note that this force to expand acts not only upward but also radially outward, so that the coil 16 extends toward the outer cylinder 12 and creates a gap between it and the inner cylinder 14 as shown in the figure. , the inner cylinder 14 may be omitted. A wire take-out device 20 has a conical shape and is attached to the upper open end of the outer cylinder 12 by a fastening band 22. Some devices include a group of wire straightening rollers on the top of the conical body for removing curls in the wire. When shipped from the factory, there is a disc-shaped lid (not shown) on the top of the outer cylinder 12. At the welding site, this lid is removed and the wire W is pulled out from inside the wire guide hole and the wire guide hole at the top of the wire take-out device 20. The wire is inserted into the conduit tube 24, etc., and then the wire extraction device 20 is attached to the upper part of the outer cylinder as shown.

Although not shown, a wire feeding device, a welding torch, etc. are provided at the tip of the conduit tube 24, and the wire W is fed to the welding part through these. As welding progresses, the wire W in the pail pack 10 is successively pulled out from the upper part of the coil 16 and gradually decreases, and the holding plate 18 is lowered. However, since both the outer cylinder 12 and the wire take-out device 20 are opaque bodies, the state of decrease in the number of wires in the pail pack 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, a hole 26 is made in the middle of the conical part of the wire extraction device 20 through which the rod can pass, and a rod 30 with a magnet 28 attached to one end is provided, and the magnet 28 at one end of the rod 30 is made of a magnetic material. The rod 30 is attracted to a certain wire via the holding plate 18, and the other end of the rod 30 is thrown out through the hole 26. In this way, as the wire W is fed out and the height of the coil 16 gradually decreases as welding progresses, the holding plate 18 descends, and the protrusion 30A of the rod 30 gradually becomes pierced. 26, and the protrusion length decreases. In other words, the protrusion length of the rod 30 from the wire take-out device 20 serves as a guideline indicating the remaining amount of welding wire in the pail pack.

A scale or the like may be attached to the protrusion at the other end of the rod 30. FIG. 2 shows an example thereof, and 32 is a rod 3.
This is the scale attached to the other end of 0. This scale is magnet 2
One end with 8 attached is "full" and the other end is "empty"
Divide this time into 10 equal parts, for example. Instead of a scale, a colored band may be used, an example of which is shown in FIG. 2b. Assuming that the portion 34 corresponding to the "sky" is red, the next portion 36 is yellow, and the next portion 38 is blue, a considerable amount of wire still remains while blue is visible. If the blue disappears and only yellow and red remain, there is not much left. If blue and yellow have disappeared and the color is red, it can be displayed that there is almost nothing left. To attach this rod 30, as described above, when removing the upper lid of the pale pack 10 and fitting the wire take-out device 20, the magnet 2 at one end of the rod 30 must be removed.
8 to the holding plate 18 and the other end of the rod 30 protrudes from the hole 26 in the middle of the conical portion of the wire take-out device 20. It can be fixed to the upper open end.

As is clear from the above explanation, according to the present invention, the remaining amount of welding wire in the pail pack can be indicated by the extremely simple means of making a hole in the wire take-out device 20 and attaching one end of the rod to the holding plate. It is extremely effective.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of the present invention, with a portion cut away. FIG. 2 is a plan view showing the main parts of a second embodiment of the present invention. In the drawing, W is a welding wire, 1 is a pale pack, 12 is an outer cylinder, 18 is a holding plate, 20 is a wire take-out device, 26 is a hole, 28 is a magnet, 30 is a rod body,
32, 34, 36, and 38 are scales.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A remaining amount display device for a magnetic welding wire coil twisted and housed in a pail pack, the wire fitting into the outer cylinder of the pail pack housing the magnetic welding wire. A hole is made in the take-out device through which the rod can pass, and a donut-shaped non-magnetic holding plate with a wire take-out hole in the center is placed at the upper end of the pail pack to suppress the welding wire coil in the pail pack. The attached magnet is attracted to a welding wire coil, and the other end of the rod protrudes from the hole, and the protrusion serves as a guide for indicating the remaining amount of welding wire in the pail pack. Remaining amount display device for welding wire. (2) The remaining amount display device for welding wire according to claim 1 of the utility model registration, characterized in that the other end of the rod has a scale.