JPH0474092B2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention prevents the welding wire from flying away or dancing when the welding wire is wound into a coil shape while giving a predetermined twist in a pail pack. The present invention relates to a method and device for winding and storing a wire, which enables winding in an orderly manner and at high speed.

Prior Art Welding methods such as MIG welding and TIG welding are widely practiced, in which welding is performed by continuously feeding a welding wire into a conduit tube and exposing the wire to a welding torch. Further, as the mechanization of welding work progresses and semi-automatic welding and fully automatic welding are carried out, the consumption of welding wire has also increased comparatively. Therefore, in order to ensure a sufficient supply capacity for this welding wire and to facilitate its handling and transportation, it can be wound on a reel or wrapped in a container called a pale pack and stored in a coil shape, and then welded from the pack. A method of pulling out the wire is adopted. When manufacturing a welding wire by winding the welding wire in the above-mentioned pail pack and sequentially laminating the welding wire to form a hollow coil, the wire is given a slight twist in advance, and when it is fed out from the above-mentioned pail pack. The twist that generally occurs is canceled out by the previously applied twist, thereby preventing meandering of the bead and deflection of the welding position during welding work. In addition, in order to smoothly draw out the welding wire from the pail pack, a technique is generally adopted in which the welding wire is wound in a honeycomb (flower pattern) shape while eccentrically rotating the pail pack (for example, Publication No. 606). However, the various conventional winding methods have the disadvantage that the wire jumps or dances due to the high drop that exists when feeding the welding wire, making it impossible to wind the welding wire in an orderly manner. .

For example, an example of a conventional welding wire winding method will be described with reference to FIG.
The welding wire 12 is continuously fed out from a supply source (not shown), is fed through a large-diameter guide pulley 10 to a guide tube 14 curved in a pigtail shape, and is moved downward while being given a turning motion by the rotation of the tube 14. It is starting to be sent out. Further, below the guide tube 14 is an outer cylinder 16 of a pale pack having a bottom and an open top.
is arranged rotatably, and an inner cylinder 1 is arranged in this outer cylinder 16.
8 are inserted and arranged concentrically. A guide tube 20 is vertically suspended and supported in a donut-shaped space formed between the outer tube 16 and the inner tube 18, and the guide tube 14 is positioned on the outer periphery of the guide tube 20 without contacting it. There is. Note that there is a considerable head difference H between the open end of the guide tube 14 and the bottom of the outer cylinder 16, as shown in the figure. Further, the rotation center of the guide tube 14 and the central axis of the guide tube 20 coincide with each other, and
Both axes are slightly eccentric with respect to the center of rotation of the outer cylinder 16 and the inner cylinder 18 constituting the above-mentioned pail pack.

As mentioned above, the guide tube 14 and the outer cylinder 16 of the pail pack are each driven by a rotation source (not shown) to rotate in a predetermined direction. The outer cylinder 16 is guided by the outer periphery and falls while turning in a spiral shape, and in the process, the above-mentioned twist is imparted and the bottom of the outer cylinder 16 is wound with a honeycomb pattern in the form of a floral pattern.

Problems to be Solved by the Invention However, according to this wire winding method, the open end of the guide tube 14, which is also rotating, is connected to the outer cylinder 1 with respect to the rotating pail pack.
Because it has a considerable head difference H with respect to the bottom of 6,
In the process of the welding wire being let out from the open end and falling, it may fly off or the guide tube 20 may
Due to contact friction with the wires, the wires dance and fall out of order, and winding is often not done in an orderly manner, which adversely affects the quality of the product. In addition, in the presence of the head, the guide tube 1
When the rotational speed of 4 is increased, the welding wire 12 bulges in the radial direction due to centrifugal force, hits the inner wall surface of the outer cylinder 16, and flies off, so high-speed winding cannot be achieved and productivity does not improve. There are also other drawbacks.

Purpose of the Invention The method and device according to the present invention have been devised in view of the above-mentioned drawbacks that occur when winding a welding wire into a pail pack and storing it in a coiled manner. Eliminating splashing and other disturbances of the welding wire fed from the tube, it enables orderly winding.
Another purpose is to increase production efficiency by increasing the speed of wire winding work.

Means for Solving the Problems In order to overcome the above-mentioned problems and achieve the intended purpose, a method for winding and storing wires in a pail pack according to the present invention is a method for storing wires in a pail pack in which an inner cylinder is arranged concentrically within an outer cylinder having a bottom. is rotated on a rotating base, and a welding wire is fed from a spiral guide tube facing into the outer cylinder, and when the wire is fed, the pail pack is lowered at a predetermined speed, and the welding wire is fed into the pail pack. When the wire is wound and stored in a twisted state, the guide tube is held unrotatable in the outer cylinder, and when the wire starts to be fed, the open end of the guide tube is placed above the bottom of the outer cylinder. While the welding wire is being fed, the pail pack is lowered at a predetermined speed so that the winding surface of the wire wrapping body to be wound on the bottom of the outer cylinder is The invention is characterized in that control is provided to always maintain the small distance between the guide tube and the open end of the guide tube.

In order to suitably carry out the method, another invention of the present application includes a rotating base on which a pale pack consisting of an outer cylinder and an inner cylinder can be placed and rotatable in a predetermined direction; A wire winding and storing device for a pail pack, which comprises a helical guide tube facing the welding wire, and a means for lowering the pail pack at a predetermined speed when feeding the welding wire from the guide tube. is fixedly disposed in the outer cylinder in a non-rotatable state, and the axis of the helical center of the tube is positioned eccentrically and parallel to the rotation center of the rotary base, and feeding of the welding wire is started. In some cases, the guide tube may be characterized in that the downwardly directed open end faces above the bottom of the outer cylinder with a slight gap in between.

Embodiments Next, the method and apparatus according to the present invention will be described in detail below with reference to the accompanying drawings, giving preferred examples for implementing the same. FIG. 2 shows a schematic configuration of an apparatus capable of suitably implementing the wire winding and storage method according to the present invention, in which a pail pack designated by the reference numeral 22 has an outer cylinder 24 having a bottom and an open top. , and an inner cylinder 26 disposed concentrically within the outer cylinder 24, and is placed on a rotating base 28. The rotating base 28
is rotatably supported via a rotating shaft 34 on a horizontal arm 32 which is disposed on a column 30 so as to be able to rise and fall freely via an appropriate elevating drive mechanism (described later), and this rotating shaft 34 is attached to the arm 32. The motor 36 is connected to the rotating shaft of the motor 36 by means such as a chain sprocket so as to be rotated in a predetermined direction.

Further, above the rotating base 28, a welding wire 38 is provided.
A spiral guide tube 40 having a predetermined opening diameter that allows insertion of the guide tube 40 is fixedly held vertically by appropriate means. In the illustrated embodiment, the guide tube 40 is fixed to the outer periphery of a guide cylinder 42 having a diameter substantially equal to the turning diameter of the spiral, and
Further, the guide cylinder 42 is fixedly held by suitable means such as a beam extending horizontally above the rotary base 28. and the guide tube 4
The center axis _l1 of the pail pack 22 and the rotational center _l2 of the rotary base 28 on which it is placed are slightly eccentric and extend parallel to each other.

In FIG. 2, an auxiliary inner cylinder 44 is removably inserted and fitted inside the guide cylinder 42 and outside the inner cylinder 26 concentrically with the inner cylinder 26. This auxiliary inner cylinder 44 is disposed as shown in the figure only during the wire winding work, and is removed after the work is completed to separate the wire wrapping body formed by the winding work and the inner cylinder 26. A slight annular gap is provided between the welding wires to facilitate the feeding of the welding wire.

In the apparatus shown in FIG. 2, the guide tube 40, which is formed in a spiral shape and is fixedly held, is located sufficiently close to the upper part of the rotating base 28, and is mounted on the base 28 with its lower open end E. As shown in FIG. 3, a small gap G is maintained between the placed pail pack outer cylinder 24 and the bottom before winding starts. Then, when the wire winding operation is started and the welding wire 38 is let out from the lower open end E of the guide tube 40, a hollow coil-shaped wire wrapping body is gradually formed in the pale pack 22, and as a result, the winding surface The level of will rise and approach the open end E. Then, the above-mentioned elevating drive mechanism starts operating, and the rotary base 28 on which the pail pack 22 is placed is lowered relative to the support column 30 in accordance with this level rising speed. Thereby, the constant gap E is always maintained between the open end E and the wire winding surface. The elevating drive mechanism includes a horizontal arm 3 on which a rotating base 28 is mounted.
It is proposed to employ a known rack and pinion mechanism that connects the upright column 2 and the upright support 30 in a vertically movable manner, but other appropriate means such as a ram mechanism using fluid pressure as a driving source may also be suitably used. It is something. Further, since the vertical movement applied to the guide tube 40 and the rotary base 28 (as well as the pail pack 22 placed on the base) is relative, the rotation is opposite to that of the illustrated embodiment. Of course, the base 28 may be held at a fixed position without being able to move up and down, and the guide tube 40 may be driven up and down.

Effects of the Embodiment Next, the procedure for carrying out the wire winding and storage method according to the present invention using the apparatus configured as described above will be explained. A welding wire 38 continuously arriving from a welding wire supply source (not shown) is fed while being inserted into a guide tube 40 formed in a spiral shape and held vertically in a fixed position, and passes through this spiral portion. In the process, the wire 38 is given a predetermined twist, and the tube 40
It comes diagonally downward from the lower opening end E of. At this time, the rotary base 28 on which the pale pack 22 is placed
is driven by a motor 36 to rotate in a predetermined direction, so that the welding wire 38 fed out from the open end E of the guide tube 40 is twisted at the bottom of the outer cylinder 24. It is wound one after another to form a hollow coil-shaped wrapping body. Furthermore, as described above, the central axis _l1 of the guide tube 40 is slightly eccentric with respect to the rotation center _l2 of the outer cylinder 24, so the welding wire 38 fed out from the tube is wound in a honeycomb (flower pattern) shape. It is passed around.

As mentioned above, the opening end E of the guide tube 40 faces above the bottom of the rotary base 28 and, ultimately, the outer cylinder 24 of the pale pack 22 with a slight gap G, so that there is a slight gap above the bottom of the outer cylinder. The welding wire 38 is then wound.
As the winding of the welding wire 38 progresses, the level of the winding surface of the coiled wrapping body rises. At this time, the above-mentioned lifting drive mechanism is activated to guide the rotating base 28. tube 4
By lowering the opening correspondingly to 0, a small constant gap (for example, about 30 to 50 mm) is always maintained between the tube opening end E and the winding surface level of the winding body. Therefore, the welding wire 38 that is continuously fed out from the tube opening end E is neatly wound into a coil shape without jumping or dancing during the process of settling on the winding surface level. be.

Effects of the Invention As described above, according to the welding wire winding and storage method of the present invention and the device implementing the same, when winding the welding wire in the pail pack, the lower opening end of the guide tube and the wire winding surface are connected. A small gap G is always set between the wires, and there is no large head difference as in the conventional winding method described above, so that the wire does not jump or otherwise dance when feeding the wire. This results in a highly orderly winding of the wire.

That is, since the guide tube is held non-rotatably, a complicated mechanism for rotating the guide tube is not required, resulting in simplification. Furthermore, the guide tube itself does not rotate, and the welding wire emerges from the open end after passing through a relatively long helical portion of the tube. Therefore, no circumferential centrifugal force is applied to the welding wire, and moreover, during wire feeding, the welding wire lands on the winding surface of the wire wrapping body at the shortest distance from the open end of the tube. Therefore, unlike conventional wire winding and storing methods and devices, there is a great advantage that the welding wire does not bulge in the radial direction due to centrifugal force during winding, and winding can be carried out smoothly at high speed. In the embodiment shown in FIG. 2, a case has been described in which a guide tube 42 is provided, but it is of course possible to carry out the method of the present invention without using this guide tube 42.

[Brief explanation of drawings]

FIG. 1 is a schematic explanatory diagram showing an example of an apparatus for carrying out a method of winding and storing wires in a pail pack according to the prior art, and FIG. 2 shows a book as a preferred embodiment for carrying out the method according to the present invention. FIG. 3 is a schematic diagram of the inventive device, and is an explanatory diagram showing a state in which a slight gap G is formed between the tip of the guide tube and the bottom of the pail pack. 24... Outer cylinder, 26... Inner cylinder, 28... Rotating base, 40... Spiral guide tube.

Claims (1)

[Scope of Claims] 1. A pail pack 22 in which an inner tube 26 is arranged concentrically in an outer tube 24 having a bottom is rotated on a rotating base 28, and a spiral guide tube 40 is exposed into the outer tube 24. When feeding the welding wire 38 from the guide tube 40 and lowering the pail pack 22 at a predetermined speed when feeding the wire, the welding wire 38 is wound and stored in the pail pack 22 in a twisted state. is held in a non-rotatable manner in the outer cylinder 24, and at the time of starting wire feeding, the open end E of the guide tube 40 is made to face above the bottom of the outer cylinder 24 for a short time via 〓G. , While the welding wire 38 is being fed, the pale pack 22 is lowered at a predetermined speed so that the winding surface of the wire wrapping body wound on the bottom of the outer cylinder 24 and the open end E of the guide tube 40 are A method for winding and storing a wire in a pail pack, characterized in that a control is provided to always maintain 〓G for a short period of time between . 2. A rotary base 2 on which a pale pack 22 consisting of an outer cylinder 24 and an inner cylinder 26 can be placed and rotated in a predetermined direction.
8 and the outer cylinder 24 from above the rotating base 28.
In a wire winding storage device for a pail pack, which comprises a spiral guide tube 40 facing inside, and means for lowering the pail pack 22 at a predetermined speed when feeding the welding wire 38 from the guide tube 40, The spiral guide tube 40 is connected to the outer cylinder 24.
In addition to being fixedly disposed in a non-rotatable state,
The axis l ₁ of the helical center of the tube 40 is positioned parallel and eccentrically to the rotation center l ₂ of the rotation base 28, and is directed downward of the guide tube 40 when the welding wire 38 starts to be fed. A wire winding storage device for a pail pack, characterized in that the opening end E faces above the bottom of the outer cylinder 24 through a slight distance G.