JPH0128950Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is a method for welding wire to be entangled with welding wire and to be taken out smoothly and continuously without any tangles from a single cylinder pail pack in which welding wire is coiled and stored in layers. This invention relates to a restraining member.

A pail pack is used as a large-capacity welding wire storage container, and the wires are taken out from the pail pack in order from the top of the wire coil body to the outside of the pail pack, and bent with a wire straightener as necessary. is removed, and then guided through a conduit tube to a welding torch by a wire feeding mechanism provided on the welding torch side. Various take-out devices have been devised to smoothly take out the welding wire from the pail pack, but all of them are difficult to take out continuously over a long period of time, especially when high-speed take-out is performed in response to high-efficiency welding. This is not satisfactory as tangles etc. occur.

In particular, welding wire stored in recent pail packs is twisted within its elastic limit, for example, with approximately 360 degrees of twist per turn of the wire. When the wire is released, it has a tendency to bounce in the axial direction of the pail pack.
Tangle etc. appear more clearly. For this reason, a conventional method has been proposed in which a ring-shaped restraining member is placed on the upper end of the wire coil body in the pail pack to press down the wire from above, thereby preventing the wire from jumping up.

However, even in this method, since there is a gap between the outer circumference of the annular holding member and the inner wall of the body of the pail pack, the wire can jump up from the gap and get tangled, causing problems such as tangles and interrupting wire removal. There is. For this reason, Mikiakiaki
57-138856, a string with one end attached to the upper part of the body of the pail pack is engaged with a wire restraining member and guided to the bottom of the pail pack, and the other end of the string is attached to the bottom, or As disclosed in No. 143,986, the above-mentioned gap is shielded by means such as attaching an elastic member that contacts the inner wall of the pail pack body to the wire restraining member, thereby achieving the effect of preventing the wire from jumping out. However, as monocylindrical pail packs without an inner tube have recently begun to be used, a problem has arisen in which the wires become tangled when the wires are taken out from the inner circumference of the annular holding member, that is, the wire take-out hole. . In other words, since the monocylindrical pail pack does not have an inner tube, the hollow part of the wire coil body is large.
If ~3 coils are taken out at the same time, the wires will bounce in an attempt to untwist in the hollow portion, causing problems such as tangles. If the wires in the pail pack become tangled and tangled during welding, the wires will not be fed to the welding torch and the welding operation cannot be continued, or even if it is possible, welding defects will occur.

The present invention has been made in order to solve the above-mentioned drawbacks of the prior art, and its purpose is to provide a welding wire pressing member that can be smoothly taken out without getting tangled or tangled when the wire is taken out from a pail pack. , the gist of which is a welding wire restraining member placed on the upper end of the coil body of welding wire coiled and stacked in a single cylindrical pail pack, and inside the annular restraining part. It has a wire take-out part in which an upper hole and a lower hole having a larger diameter than the upper hole are coaxially formed. The present invention will be explained below based on specific examples shown in the drawings. Of course, the following specific examples do not limit the present invention, and various embodiments can be considered as appropriate without departing from the gist of the present invention.

FIG. 1A is a cross-sectional view showing the state in which the welding wire holding member of the present invention is used, and FIG. 1B is a perspective view of the entire holding member. The pail pack 1 has a body part 2 and a bottom part 3, and twisted welding wires are stacked in a coil shape and housed inside the pail pack 1. 4 shows a coil body of this welding wire. A conduit tube is provided above the open end of the bottomed body 2, and a wire straightener is removably attached to the conduit tube in alignment with the wire introduction hole, if necessary.

A welding wire restraining member 5 is placed on the upper end of the wire coil body 4 housed in the pail pack 1. The suppressing member 5 has an annular suppressing part 6 that directly contacts and presses the coil body 4, an upper hole 9 arranged inside the suppressing part 6, and a lower hole 10 having a larger diameter than the upper hole 9 coaxially. A wire W is formed through the hole.
The main component is a truncated conical wire take-out part 7 that guides and leads upward, and in this specific example, both parts are made of a flexible belt-like string 8 (e.g., rubber string, cloth string, etc.). It is connected with. The problem of the wire protruding from the gap between the outer periphery of the holding member 6 and the inner wall of the pail pack body 2 has been solved by the method of Utility Model Application No. 57-138856, and 11 is a string used in this method, and 12 is a string through which the string 11 is inserted. This is a hole provided in the restraining part 6 of the restraining member.

Since the welding wire restraining member 5 of the present invention is constructed as described above, it brings about the following effects when used. That is, as the wire W is consumed, the suppressing member 5 moves down together with the upper end of the coil body 4, and its suppressing part 6 prevents the wire coil at the upper end of the coil body 4 from jumping up, and the wire being pulled out from the coil body 4 at its take-out part 7. The degree of freedom of W is restricted to guide the wire and take it out upward. The pail pack applied to this invention does not have an inner cylinder, and therefore the inner cavity of the coil body occupies a large proportion, and the degree of freedom of the wire drawn out from the coil body is large. If the wires are pulled out at the same time, they will get loose in the free space and cause tangles, but if the above-mentioned take-out part 7 is provided as in the present invention, the degree of freedom of the wires to be pulled out from the coil body is restricted and the wires will not get tangled. Smooth extraction can be achieved. In addition, in this specific example, as shown in FIG. 1a, the holding part and the take-out part 7 are connected by a flexible string 8, so the take-out part 7 lowers slightly due to its own weight.
The wire W at the upper end of the coil body 4 is pulled out while being held down by the lower hole 10 at the lower end of the take-out part 7, and as a result, it is pulled out one coil at a time from the upper end of the coil body 4, making it difficult to pull out 2 to 3 turns at a time. Therefore, even if the wire is pulled out, the degree of freedom of the wire is restricted as described above and the wire will not become tangled. Furthermore, if the holding part and the taking-out part of the wire are constituted separately and connected by a flexible string, it becomes easier for the holding part and the taking-out part to perform their respective functions without being interfered with by the other parts. In other words, this is a preferred embodiment of the present invention because the movement of the wire W being taken out of the take-out part is less likely to be transmitted to the holding part.

Figures 2a and b show other specific examples of the present invention, and figure a shows one in which the wire take-out portion 17 of the holding member 15 is of the specific example shown in Figure 1 (the take-out portion is shaped like a truncated cone). The ring part 9' of the upper hole 9 and the ring part 10' of the lower hole 10 are connected by a plurality of arms 13. . Further, b is a specific example in which the wire restraining portion 16 and the wire extraction portion 27 of the restraining member 25 are integrally constructed.

The material of the wire restraining part and the wire extraction part of the restraining member is not particularly limited, but may be made of steel, synthetic resin such as vinyl chloride, hardboard, or cardboard.

As explained in detail above, in the present invention, the restraining member placed on the upper end of the wire coil body stacked and housed in a single cylindrical pail pack is composed of an annular restraining part and a wire take-out part disposed inside the restraining part. This prevents inconveniences such as tangles and tangles due to disorderly springing up of the twisted wire, and allows the wire to be taken out smoothly. The restraining member of the present invention is suitable not only for removing ordinary welding wire continuously for a long time or at high speed, but also for welding wire that has been twisted and stored in layers in a single cylindrical pail pack. It is effective in taking out the wire, and it is possible to smoothly and continuously take out the wire without interrupting the welding work, and its practicality is extremely high despite its simple configuration.

[Brief explanation of the drawing]

1A and 1B are a vertical cross-sectional view and a perspective view of essential parts of an embodiment of the present invention, and FIGS. 2A and 2B are a perspective view and a sectional view of another embodiment of the present invention. In the drawings, 1 is a pale pack, 4 is a welding wire coil, 5, 15, and 25 are restraining members, 6 and 16 are restraining parts thereof, and 7, 17, and 27 are wire take-out parts.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A welding wire holding member placed on the upper end of a coil body of welding wire coiled and stacked in a single cylindrical pail pack, which is an annular holding member. 1. A welding wire holding member comprising a wire take-out portion having an upper hole and a lower hole having a larger diameter than the upper hole coaxially formed inside the portion. (2) The welding wire restraining member according to claim 1, wherein the restraining part and the take-out part of the wire are connected via a flexible member.