JPH0237497Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a welding wire supply device.

(Prior Art) At the beginning of winding a conventional reel-wound welding wire, the wire is fixed through a hole in the flange of the reel toward the drum. Therefore, if you connect the wire endlessly, you will not be able to remove the empty reel from the wire.
As a result, each time one reel is used, the welding operation must be interrupted to replace the reel, which is extremely inconvenient. In addition, the shaft on which the conventional reel-wound welding wire rotates allows the reel-wound welding wire to be installed and removed only in one direction, and it is not possible to insert or remove the reel-wound welding wire first. There is a problem that the welding wire cannot be wound.

Incidentally, there is a cable drum shown in Japanese Utility Model Publication No. 48535/1983 as a device similar to the welding wire supply device as described above. This cable drum has a drum with a notch groove wide enough to fit the cable along the winding direction of the cable on one side of the drum, and a plurality of drums can be connected and fixed in the direction of the rotation axis, and the notch groove One side is removably fitted with an inclined spacer. In this cable drum, multiple cables are connected and fixed so that a large amount of cable can be wrapped in it, and a large amount of cable can be wrapped in it without increasing the diameter of the flange plate. This makes it easy to handle.

By the way, in this cable drum, the collar plates are connected by bolts in order to fix multiple pieces, but the bolt connection part is set within the cable winding range by reducing the diameter of the collar plate. has been done. For this reason, when multiple cable drums are fixed together and the cable is pulled out from the cables using a pulling device, one of the fixed cable drums
Since the cable is not obstructed by the drum on which the cable is fed out, the bolt can be operated, thereby allowing the drum to be separated from the other drums. However, it is impossible to add and secure a new drum to the drum around which the cable has been wound, unless the cable is wound, since the bolts cannot be operated. For this reason, connect the new cable to the cable of the drum that has already been set,
It is not possible to use the cable by feeding it out endlessly, and the working efficiency when using the cable is low.

(Purpose of the invention) The present invention was made in view of the problems existing in the above-mentioned conventional technology, and it is possible to use welding wire endlessly by sequentially adding reels, thereby greatly contributing to improving the work efficiency of welding. It is an object of the present invention to provide a welding wire supply device that provides a welding wire supply device.

(Structure of the invention) In order to achieve the above object, the structure of the welding wire supply device of the invention is such that a notch is provided in the flange portion on one side and a slit is provided in the flange portion on the other side. A reel on which the welding wire is wound, a rotating roller on which the flange of the reel is placed and rotatably supports the reel, and a plurality of reels supported on the rotating roller. a clamp device that rotatably clamps a reel synchronizing member that is freely interposed and a plurality of reels supported on the rotating roller, and integrates the plurality of reels and the reel synchronizing member;
a wire irregular winding prevention device that presses the welding wire wound on the reel on the rotating roller toward the axis of the reel; and a limit switch that is linked to the wire irregular winding prevention device and detects the winding diameter of the wire. It is characterized by having the following. Then, the wire is fed out from one of the two reels which are integrally held via the reel synchronization member and the ends of the wound wire are connected, and the wire winding diameter of the reel is reduced. When a predetermined value is reached, this is detected by a limit switch which is linked to a wire winding prevention device. By this detection, it can be determined that the winding diameter of the wire has become smaller and that the wire will be fed out to the other reel after a predetermined period of time. Furthermore, when one reel becomes empty, the wire continues to be fed out from the other reel, but at any time, the one reel is removed from the rotating roller together with the reel synchronizing member by the clamping and unclamping operations of the clamping device. the other reel is relocated after the one reel, a new reel is added after the other reel, both reels are held together via a reel synchronizing member, and the wires of both reels are The connection is made and the wire is fed out in the same manner as described above.
In this way, a new reel can be added and the wire can be connected to the already set wire, so the wire can be used endlessly, and as a result, the interruption time of welding work can be shortened and work efficiency can be improved.

(Example) Hereinafter, an example of the present invention will be described based on the drawings.

1 to 4, 1 is a reel around which welding wire 2 is wound, 3 and 4 are flange portions of the reel 1, and 5 is a drum. One flange portion 3 is provided with a notch 6, and the other flange portion 4 is provided with a slit 7. Now, the welding wire 2 is fixed in the notch 6 and wound in the direction from the arrow A to the arrow B through the slit 7.

8 is a reel synchronizing member provided to rotate the two reels 1 and 1' synchronously, and the synchronizing tool 8
Two reels 1 and 1' connected in series are placed on a rotating roller 9. Clamp devices 10 and 11 rotatably hold the reels 1 and 1' using the biasing force of the spring 12. Reference numeral 13 indicates a welded portion where the welding wire 2 is connected. Also,
Reference numeral 14 indicates a wire winding prevention device, 15 a limit switch, and 16 a wire feed motor.

Next, the operation of this embodiment will be explained.

Now, as shown in FIGS. 3 and 4, when the welding wire 2 is put into use by operating the wire feed motor 16, the reel 1' will eventually become empty. At this time, the end of the winding start protruding from the notch 6' of the flange part 3' of the reel 1' and the end of the winding after cutting the part protruding from the slit part of the reel 1 are connected to the flash butt welding machine. Since the reel 1' is connected as shown by the welded portion 13, the welding wire 2 is supplied from the reel 1 even if the reel 1' becomes empty. In this state, the reel holding clamp 11 is unclamped, and the reel 1' together with the reel synchronizing member 8 is taken out upward as shown by arrow C. Next, the reel holding clamp 11 is put into a clamped state, and the reel 1 is slid to the right. Then, the reel holding clamp 10 is brought into an unclamped state, and a new reel (not shown) is accommodated together with the synchronizing member in the left space as shown by arrow D, and is connected to the reel 1. At this time, the reel holding clamp 10 is in a clamped state, and the winding start end of the reel 1 and the winding end end of the new reel after cutting the portion extending outside the slit portion are connected by welding.

From now on, this operation will be repeated. In addition,
In this embodiment, there are two reels, but three reels are installed in series.
The number may be more than or equal to 1.

Further, in this embodiment, the wire irregular winding prevention device 14 always has its tip in contact with the welding wire 2 wound on the reel, and detects the winding state of the welding wire 2. Therefore, in the event of an abnormality, the rotation of the reel can be stopped, and when the reel is nearly empty, it can be detected and notified. These things are done via the limit switch 15. This makes it possible to monitor the amount of welding wire used.

As described above, according to the present invention, it is possible to continuously supply welding wire across a plurality of reels, to use welding wire endlessly by sequentially replacing the reels, and to quickly supply reels and reel synchronizing members. By replacing the parts, interruption of welding work can be suppressed in a short period of time, and welding work efficiency can be significantly improved.

[Brief explanation of the drawing]

The figure shows one embodiment of the present invention.
2 is a perspective view of the reel, FIG. 2 is a partially cutaway perspective view, FIG. 3 is a front view, and FIG. 4 is a side view. 1, 1'... Reel, 2... Welding wire, 3,
3', 4...flange part, 6, 6'...notch, 7...
...slit, 8...reel synchronization member, 9...rotating roller.

Claims (1)

[Scope of utility model registration request] A notch is provided in the flange portion on one side, and a slit is provided in the flange portion on the other side, and a reel is placed on which the welding wire is wound with the end portion located in the notch and the slit, and the flange portion of the reel is placed. A rotating roller that rotatably supports a reel, a reel synchronizing member that is detachably interposed between the end faces of the plurality of reels supported on the rotating roller, and a plurality of reels supported on the rotating roller. a clamp device that rotatably clamps the reel and integrates the plurality of reels with the reel synchronizing member; and a wire that presses the welding wire wound around the reel on the rotating roller toward the axis of the reel. A welding wire supply device comprising: a wire random winding prevention device; and a limit switch that is linked to the wire random winding prevention device and detects the winding diameter of the welding wire.