JPH0334424B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a method for smoothly pulling out the welding wire from a welding wire storage container (commonly known as a pale pack) when the welding wire is taken out by the internal drawing method. The present invention relates to a welding wire storage mechanism, and particularly relates to a welding wire storage mechanism for smoothly taking out the stored tip wire (the tip at the beginning of winding and the rearmost end when pulled out).

[Prior Art] FIG. 2 is a partially cutaway perspective view showing an example of the structure of a pail pack used in a method for drawing out welding wire. Welding wires 3 wound into a ring shape are stacked and housed in the pail pack 2, and the lead-out end 3a of the wire is taken out from the upper side of the welding wire 3, and the storage tip wire 3c present at the bottom is shown in the figure. The winding wire is guided upwardly along the outer circumferential surface of the pail pack as shown in FIG. That is, the storing leading edge 3b passes through the through hole 6 of the holding plate 1, through the lower surface of the holding plate 1, and through the gap 7 between the inner wall surface of the pale pack and the outer peripheral surface of the winding welding wire 3 to form the wire winding start tip 3c. , continues to the welding wire located at the bottom of the pail pack 2. Wrapping wire 3
A holding plate 1 is provided on the upper surface of the holding plate 1 to prevent the wire from jumping up, and through holes 9 are provided at four locations on the periphery of the holding plate 1. A string 8 having a length extending from the string fixing device 10a on the upper part of the pale pack to the string fixing device 10b on the lower part is arranged, and the middle part of the string 8 is passed through the through hole 9 of the presser plate 1 and stretched in the vertical direction. The welding wire is prevented from moving over the presser plate 11. As the holding plate 1 gradually descends as the welding wire is consumed, the string 8 slides up and down the through hole 9, so the string 8 does not prevent the holding plate 1 from descending.

[Problems to be Solved by the Invention] The height of the wire packed in the pail pack 3 shown in FIG. 2 gradually decreases as the wire is consumed. FIGS. 3a and 3b are explanatory diagrams showing this situation. As the amount of the wound wire 3 decreases, the holding plate 1 descends and constantly presses down the upper surface of the wound wire 3 while continuing to prevent the wire from jumping up. However, the pressing force of the presser plate 1 does not reach the winding start tip 3c disposed in the gap 7 between the inner wall of the pail pack 2 and the outer circumferential surface of the winding wire 3, and as shown in FIG. I'm going to sleep. When the wire is further drawn out until only the final winding is left, the tip end 3c of the wire winding becomes increasingly violent, resulting in a state as shown in FIG. 3c. In other words, since the string 8 is arranged at several locations around the periphery of the presser plate 1, the tip end 3c of the wire winding start does not cross over the center of the presser plate 1 and become entangled with the presser plate 1. At the time when the wire winding start tip 3c starts to be pulled out, the twist in the direction around the wire axis that has been applied around the final winding is applied to the wire winding start tip 3c, and the twisted wire loop is twisted as shown in 3c''. Once the wire ring 3c'' is formed, the wire ring 3c'' is gradually narrowed down as the wire is drawn out, and the wire is kinked at the outlet.As a result, the wire feeding becomes difficult. This may become impossible or may cause inconveniences such as wires being cut.

Therefore, the inventors of the present invention have accumulated various ideas for the purpose of providing a storage mechanism that allows the tip of the winding wire to be smoothly pulled out, thereby allowing the wire to be smoothly connected to the next pack. , we have completed the present invention.

[Means for Solving the Problems] The present invention, which has achieved the above object, has a ring-shaped weight member placed on the upper part of the wound wire layer so as to be freely descendable, and each of at least three string members The upper end is passed through the center hole of the ring-shaped weight member from the upper end fixing part distributed in the circumferential direction of the storage container, and then passed through the lower side of the weight member and the outer peripheral surface of the wound wire layer to the storage container. The gist is that the string member is connected to the bottom of the container and the lower end of the string member is fixed to the bottom.

[Function] A plurality of strings (3 or more) are distributed at approximately equal intervals in the circumferential direction from the top to the bottom of the pale pack,
Both ends of the string are fixed to the upper and lower parts of the pail pack, respectively, and the middle portion of the string is inserted into the center hole of the ring-shaped weight member and held so as to be slidable in the vertical direction. By disposing the weight member on the upper surface side of the laminated wire, the string member regulates the horizontal protrusion of the wire and also prevents the tip of the welding wire from springing upward. prevent.
In addition, when the presser plate is arranged on the upper surface of the laminated wire, the weight member and the presser plate are arranged non-fixedly, so that the presser plate can move in the horizontal direction without being restricted by the weight member. It is composed of Therefore, the holding plate can rotate and move following the behavior of the unwinding end of the winding wire, and even when the welding wire has reached the final winding turn, the holding plate and the bottom of the pail pack can keep the tip of the winding at the beginning of the winding. It is possible to hold the wire properly, and it is also possible to smoothly release the leading end of the wire winding upward from the presser plate through-hole. As a result, the escape of the tip of the wire at the beginning of winding is ensured, and the tip of the wire can be pulled out smoothly without kinking.

[Embodiment] FIG. 1 is a partially cutaway perspective view showing a typical embodiment of the present invention. The arrangement of the winding wire 3, presser plate 1, etc. is similar to the conventional example shown in FIG. In this embodiment, a ring-shaped weight 11 is placed on the upper part of the presser plate 1, and the string 8 is connected to the ring-shaped center hole of the weight 11 from an upper string fixing device 10a that fixes the upper end of the string to the upper part of the pail pack. Insert the inside, press plate 1
The string extends from the upper surface to the outer peripheral edge and is connected to a lower string fixing device 10b that fixes the lower end of the string to the bottom of the pail pack. The string 8 that has reached the outer circumferential edge of the presser plate 1 passes through the gap 7 between the inner wall of the pail pack 2 and the outer circumferential surface of the winding wire 3 and is wrapped around a string fixing device 10b provided at the bottom of the pail pack. Fig. 1 shows an example in which four strings 8 are arranged at equal intervals in the circumferential direction of the presser plate 1, and the weight 11 is shown partially broken in the figure, but it actually has a ring shape. It is continuous. A mechanism for preventing the wire from jumping up using the mechanism shown in FIG. 1 will be explained with reference to FIGS. 4a and 4b.

FIG. 4a shows a state in which the final one-turn wire remains after the pull-out end 3a is taken out, and the winding start tip 3c of the wire is regulated by strings 8a and 8b.
It protrudes above the presser plate 1 from between the inner wall surface of the pail pack 2 and the outer peripheral edge of the presser plate 1. However, the movement of the winding start tip 3c across the center of the presser plate 1 is restricted by the strings 8c and 8b, and as the pull-out end 3a is pulled out, the wire winding start tip 3c moves one after another. It will be drawn into the lower part of the presser plate 1. The state in which the pull-out end 3a is further taken out is shown in the fourth figure.
Shown in Figure b. When the pull-out end 3a is unwound in the direction opposite to the direction in which it was rolled and stored (in the direction of arrow A), the force that causes the presser plate to rotate in the direction of arrow A due to the frictional force between the pull-out end 3a and the through hole 6 of the presser plate 1 However, since the presser plate 1 and the weight 11 are not fixed, they can freely rotate in the horizontal direction. Therefore, the final winding of the wire is securely held by the holding plate 1. In addition, since the presser plate 1 and the string 8 are not fixed, the string 8 is not pulled in the horizontal direction even if the presser plate 1 rotates, and the plurality of strings 8a, 8b, . . . continue to maintain a constant interval. Therefore, the winding start tip 3c is gradually drawn into the lower part of the presser plate 1 and smoothly taken out without increasing its length excessively. Therefore, kinks and the like do not occur at the winding start tip 3c due to the twist of the final wire. In addition, even when a large amount of wrapped wire 3 remains in the drawer, a similar effect of preventing the wire from springing up is exerted between the lower surface of the holding plate 1 and the upper surface of the wrapped wire 3, preventing the wires from getting tangled with each other and between the wire and the holding plate. No entanglements will occur.

5a to 5b are explanatory diagrams showing other embodiments of the present invention, in which the weight 11 slides horizontally into a groove 12 formed on the upper surface of the presser plate 1 as shown in FIG. 5a. It may be possible to fit freely, or it may be such that the weight 11 is placed along the outer periphery of the presser plate 1 as shown in FIG. 5b.

In another embodiment of the present invention shown in FIG. 6, the presser plate 1 is not provided on the winding wire 3, and the wire is prevented from springing up only by a ring-shaped weight 11. This is an example in which a ring-shaped weight 11 is disposed so as to fit into the inner hollow part of the wire 3. At this time, the width of the string 8 and the number of strings 8 are set in accordance with the method of storing the wire loop, and the structure is such that all of the upper wire loops are pressed by the string 8.

[Effects of the Invention] According to the present invention, it is possible to prevent wire entanglement and entanglement between the wire and the presser plate at the wire winding start end and the upper surface of the laminated wire, and the wire can be drawn out smoothly.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway perspective view showing a typical embodiment of the present invention, Fig. 2 is a partially cutaway perspective view showing a conventional pail pack, and Figs. 3a to 3c are drawings of the wire winding start tip 3c. FIGS. 4a and 4b are schematic diagrams illustrating wire drawing using the mechanism of the present invention, and FIGS. 5a and 6 are explanatory diagrams showing other embodiments of the present invention. It is a diagram. 1...Press plate, 2...Pail pack, 3a...
Wire pull-out end, 3b...Wire storage tip, 3c
...Wire winding start tip, 4...Holder, 6...
Through hole, 7... Gap, 8... String, 9... Through hole, 1
0a, 10b... String fixture, 11... Weight, 12
……groove.

Claims (1)

[Claims] 1. A welding wire storage mechanism in which a welding wire wound in a welding wire storage container is arranged such that the leading edge of the welding wire is placed at the upper part of the inner wall surface of the storage container, wherein A ring-shaped weight member is mounted so as to be freely descendable, and each upper end of at least three string members is connected to the center of the ring-shaped weight member from an upper end fixing portion distributed in the circumferential direction of the storage container. For welding, the string member is passed through the hole, passes through the lower side of the weight member, passes through the outer peripheral surface of the wound wire layer, and reaches the bottom of the storage container, and the lower end of the string member is fixed to the bottom. Wire storage mechanism.