JPH0229091Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention is a method for smoothly and continuously taking out welding wires without entanglement from a pail pack containing coiled welding wires in a stacked manner. The present invention relates to a welding wire extraction member.

[Conventional technology and problems]

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 wires stored in recent pail bags that are twisted within the elastic limit, for example approximately 360 degrees per turn of the wire, cannot be returned to the wire within the pail bag. Since there is an inherent force that tends to cause the wire to become loose, and when the wire is set free, it has a tendency to bounce in the axial direction of the pail pack, so tangles, tangles, etc., become more noticeable when the wire is taken out. For this reason, a conventional method has been adopted to prevent the wire from jumping up by placing an annular restraining member on the upper end of the wire coil body in the pale pack and pressing the wire from above (such as Utility Model Application No. 57-138856). , has been effective.

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, so when two or three coils are taken out from the top of the coil body at the same time, the wire tends to untwist in the hollow part. This causes inconveniences such as tangles and tangles.

[Means and actions to solve the problem]

The present invention has been made in order to eliminate the above-mentioned drawbacks of the prior art, and its purpose is to provide a welding wire take-out member that can be taken out smoothly without getting tangled or tangled when taking out the wire from a pail pack. , the gist of which is a member for taking out welding wire coiled and stacked in a pail pack, which comprises: an annular restraining member placed on the upper end of the coil body of the welding wire and restraining the coil body; a circular restriction whose outer periphery engages with a rail portion provided around the upper surface of the restraining member to form a wire outlet that is eccentrically rotatably placed on the restraining member and rotates together with the inner peripheral edge of the restraining member; member, and the shape of the lower surface of the holding member is such that a hollow part is provided between the upper end surface of the coil body on the inner circumferential side and the outer circumferential side of the holding member, and the intermediate part is a wire holding part. It is in a certain welding wire extraction member.

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, Fig. 1b is an enlarged view of the main part of Fig. a, and Fig. 2 is a partially cutaway view of the holding member of the present invention. FIG.

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 welding wire take-out member 5 is placed on the upper end of the wire coil body 4 housed in the pail pack 1. This take-out member 5 is an annular pressing member 6 that directly contacts and presses the coil body 4.
and a circular regulating member that is placed on the holding member 6 and restricts the movement of the wire W that is turned and pulled up from the upper end of the coil body 4, and forms a wire outlet 10 together with the inner peripheral edge of the holding member 6. It consists of 7. The lower surface of the restraining member 6 is cut out to provide hollow portions A and B between the upper end surface of the coil body 4 on its inner and outer circumferential sides, giving a slight degree of freedom to the wire portion in these portions, and A convex portion 11 is provided in the middle so as to suppress the wire portion on the upper end surface of the coil body. In this specific example, the restraining member 6 is a thick annular plate, the lower surface of which is cut out at an angle of 30 degrees from the inner peripheral edge 12 and the outer peripheral edge 13 to form a hollow part, and the convex part 11 has a width to restrain the wire. It is a part. Then, the regulating member 7 is made into an annular plate, and its outer peripheral edge 8 is notched at an acute angle (to form a slope),
On the upper surface of the restraining member 6, a rail portion 9 which is notched inwardly at an acute angle (forming a dovetail groove) and engages with the outer circumferential edge 8 of the regulating member 7 is provided in a protruding manner around the entire circumference. Incidentally, the problem of the wire protruding from the gap between the outer circumference of the holding member 6 and the inner wall of the pail pack body 2 was solved by the Utility Model No. 57-138856 method, and 14 is a string used in this method;
5 is a hole provided in the restraining member 6 through which the string 14 is inserted.

Since the welding wire take-out member 5 of the present invention is constructed as described above, it brings about the following functions and effects when used. Welding wire W
is pulled out one coil at a time from the upper end of the coil body 4,
The wire is pulled upward from the wire outlet 10 formed by the inner peripheral edge of the restraining member 6 and the outer peripheral edge of the regulating member 7. At this time, the wire W rises while turning, so the contact point between the wire W and the outer peripheral edge of the regulating member 7 makes a circular movement, and therefore the wire outlet 10 makes a turning movement. Wire outlet 10
The outer peripheral edge portion of the regulating member 7 on the opposite side is the rail portion 9
This contact part also moves in a circular motion. In other words, the regulating member 7 suppresses eccentric rotational movement about the axis of the coil body 4 and slides on the member 6. The outer peripheral edge 8 of the regulating member 7 is notched at an acute angle,
Since the rail portion 9 engages with the cutout outer peripheral edge 8 inwardly at an acute angle, the regulating member can smoothly perform eccentric rotation without coming off. In the illustrated example, the notch angle of the rail portion 9 is slightly larger than the notch angle of the outer peripheral edge of the regulating member to achieve a loose fitting state, so that the inner space of the coil body 4 has two to
Even if the three coils are pulled out together, the holding member 6
It is possible to regulate the disorderly movement of the drawn wire by the shielding action of the regulating member and slight up-and-down rocking, and to enable the wire to be taken out normally from the take-out port 10 without deteriorating the wire holding function of the wire holding function. .

Next, the action and effect of the lower surface of the restraining member on the wire at the upper end of the coil body will be explained. Since the inner circumferential side of the lower surface of the holding member 6 is provided with a hollow portion A between it and the coil body, the wire W is gently bent without being subjected to sudden bending force, and is pulled upward without force. . Therefore, inconveniences such as the wire being bent or the wire being pulled up at the upper end of the coil body slipping into the coil body and becoming entangled do not occur. Furthermore, since the wire is housed with a twist, there is an inherent stress in the wire that tends to spread in an attempt to release the twist. The stress inherent in the wire is released at the upper end of the coil body, and the wire becomes entangled and tangled together with the wire being pulled out, which has been a problem in the past. In this regard, in the restraining member 6 of the present invention, a hollow part B is provided between the outer peripheral side of the lower surface and the coil body,
Thereby, the coil at the upper end of the coil body is actively expanded to the outer periphery, and only the wire W to be pulled up is taken out from the inner peripheral edge 12 of the restraining member 6. That is, since the second and third wire coils, which cause noise and entanglement with the wire W being pulled up, are oriented toward the outer circumferential direction of the coil body, it is possible to prevent the wires from becoming entangled.

Note that the degree of freedom of the wire expanded toward the outer circumference at the upper end of the coil body is restricted by the outer circumferential side of the lower surface of the restraining member 6 and the string 14 for preventing jumping up, so the restraining member 6
Inconveniences such as jumping out from between the inside wall of the pail pack body 2 and the inside wall of the pail pack body 2 do not occur.

In addition, the holding member of the present invention does not use its entire lower surface to suppress the upper end surface of the coil body, but uses the convex portion 11 provided approximately at the center of the lower surface to suppress the upper end surface of the coil body, leaving the inner and outer circumferential sides, or only the outer circumferential side. The wire W is stacked and housed in the pail pack so that the center of each successive coil of the wire draws a spiral with the center axis of the pail pack as the axis, that is, each coil is eccentrically stacked inside the pail pack. Therefore, the two parts of the coil are always held down by the convex portions on the lower surface of the holding member, and the holding member 6 fully exhibits the wire holding effect.

The pail pack of this specific example does not have an inner cylinder, so 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 this occurs, they will become entangled in the free space and cause entanglements. In the present invention, since the lower surface of the restraining member is formed as described above, such inconvenience hardly occurs, but even if it occurs, the degree of freedom of the wire drawn out from the coil body is restricted by the action of the restraining member. Smooth removal can be achieved without tangles.

In this way, as the wire W is consumed, the take-out member 5 moves down together with the upper end of the coil body 4, and its restraining member 6 prevents the wire coil at the upper end of the coil body 4 from jumping up, and its restricting member 7 pulls it out from the coil body 4. The degree of freedom of the wire W is restricted and the wire is taken out upward one coil at a time in an orderly manner.

In this specific example, the shape of the regulating member is an annular plate, but it is also assumed to be ring-shaped. Various options are possible, such as making it into a disk shape. Further, although the outer peripheral edge of the regulating member and the rail portion of the restraining member are engaged with each other at an acute angle, they may be engaged with each other with a rounded shape.

The material of the restraining member and regulating member of the extraction member is not particularly limited, but may be made of steel, polyvinyl chloride,
Made of synthetic resin such as ABS resin. In order to more effectively carry out the present invention, it is preferable to use a smooth material with a small coefficient of friction for the contacting portions of the restraining member and the regulating member.

[Effect of idea]

As explained in detail above, in the present invention, the wire take-out member placed on the upper end of the wire coil body stacked and housed in the pail pack is provided with a hollow space between the upper end surface of the coil body and the inner circumferential side of the lower surface and the outer circumferential side of the lower surface. Since it is composed of an annular restraining member shaped to hold down the wire at the middle part and a regulating member placed on the restraining member so as to be eccentrically rotatable, it is possible to prevent the chaotic behavior of the twisted wire. This prevents inconveniences such as tangles and tangles, and allows the wire to be taken out smoothly.
The holding member of the present invention can be used not only when ordinary welding wire is taken out continuously for a long time or at high speed, when twisted wire is taken out from a double cylindrical pail pack (with an inner cylinder), but especially when twisted wire is taken out. It is effective in taking out welding wires that are stacked and stored in a single cylindrical pail bag, and it is possible to smoothly and continuously take out the wires without interrupting the welding work. Despite its simple configuration, its practicality is extremely high.

[Brief explanation of the drawing]

Fig. 1a is a cross-sectional view showing how the welding wire holding member of the present invention is used, Fig. 1b is an enlarged view of the main part of Fig. a, and Fig. 2 is a partially cutaway view of the holding member of the present invention. It is an overall perspective view. 1... Pail pack, 4... Coil body, W...
Welding wire, 5... Takeout member, 6... Suppressing member, 7... Regulating member, A, B... Hollow part.

Claims (1)

[Scope of utility model registration request] A member for taking out welding wires coiled and stacked in a pile pack, which includes an annular restraining member placed on the upper end of the coiled body of the welding wire to hold down the coil body, and a ring-shaped restraining member disposed around the upper surface of the restraining member. a circular regulating member whose outer periphery engages with the rail portion, is eccentrically rotatably placed on the holding member, and forms a wire outlet that rotates together with the inner periphery of the holding member; A welding wire characterized in that the shape of the lower surface is such that a hollow portion is provided between the upper end surface of the coil body on the inner circumferential side and the outer circumferential side of the holding member, and the intermediate portion is a wire holding portion. Removal member.