JPH0618705Y2 - Welding wire entanglement prevention device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial field of application) The present invention relates to a coil which is enclosed between an inner cylinder and an outer cylinder of a container having a double cylindrical structure in a constant winding state. The present invention relates to a kink preventing device for a welding wire, which can easily pull out the welding wire in a form of shape even when the wire is abnormally wound when the welding wire is pulled out from a container and supplied to a welding robot. It is a thing.

(Prior Art) Container with Double Cylindrical Structure (Hereinafter, referred to as Pack Container)
When drawing out the wire enclosed in the winding state and supplying it to the robot on the welding line, the wire wound in the coil form in the conventional pack container floats naturally due to the twisting force of the wire inside the pack container. There have been problems such as being caught in the inner cylinder member and the wire itself being entangled, often stopping the working process.

Conventionally, in order to solve such a problem that the wire cannot be pulled out, as shown in FIG. 2, a wire (2) enclosed in a coil state in a pack container (21) is used.
2) and the outer cylinder (23) are provided with a donut type pressing plate (24) which comes into contact with the inner peripheral surface of the outer cylinder (23) and descends downward due to its own load, and between the pressing plate (24) and the outer cylinder. I have also devised a device to deliver the wire from the void.

However, in the case of such a delivery device, the wire (22) floats in the gap where the push plate (24) is pulled up by the wire that is pulled out, and the wire that is about to float and the wire that is pulled out are entangled. For example, when the wire pulls out poorly, or when the wire (22) is pulled out, some parts are pushed by the contact with the donut type pressing plate (24), and when welding is performed in this state, the welded parts are even. No welding failure phenomenon occurred.

As shown in FIG. 1, when the wire wound in the pack container was abnormally wound, it was more difficult to pull out the wire.

That is, when a wire to be pulled out (hereinafter referred to as a pull-out wire) and a remaining wire (hereinafter referred to as a residual wire) are entwined and wound (A in FIG. 1), the lower end of the residual wire is Not only is it difficult to draw out the drawn wire that is positioned due to the load of the push plate and the obstructive action of the residual wire, but the tension that the wire receives during drawing becomes high, and the wire is cut during drawing, or A part to be pushed is generated.

Further, when the wire is wound in a twisted state (B in FIG. 1, the twisted portion is indicated by x) and when the wire is greatly wound and bent (C in FIG. 1, Even when the bent portion is indicated by y) and when it is wound in a state of being in close contact with the inner cylinder (D in FIG. 1, the intimate portion is indicated by z), the wound wire is pushed by the push plate. To be loaded,
Further, since the wire is in a tightly wound state with no gaps, it is not easy to pull out the wire.

(Problems to be solved by the invention) Therefore, the present invention was devised to solve the above-mentioned conventional problems, and a wire guide member provided between an inner cylinder and an outer cylinder of a pack container. Is formed in the form of an inclined plate having a constant inclination angle, and the total weight of the guide member is biased inward so that the tension received by the drawn wire is minimized so that the wire is abnormally wound. It is an object of the present invention to provide a entanglement prevention device for welding wires, which enables these wires to be easily pulled out even in a state where the wires are welded.

[Structure of the Invention] (Means for Solving the Problem) The wire entanglement prevention device of the present invention for achieving the above-mentioned object is an inner cylinder (2) and an outer cylinder (3) of a pack container (1). A wire guide member (4) is provided between the inner ring and the outer ring, and the wire guide member (4) includes an inclined surface (5) having a constant inclination (α) between the inner ring and the outer ring. A guide groove (6) is formed along the periphery, and a large number of bearings (7) are movably provided in the guide groove (6).

(Example) Hereinafter, the operation and effect of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 3 shows a partially cutaway perspective view of a wire guide member (4) provided between an inner cylinder (2) and an outer cylinder (3) of a pack container (1) according to the present invention. However, in the drawing, the wire guide member (4) has an inclined surface (5) having a constant inclination (α) between the inner ring and the outer ring, and this guide member (4) is inside the pack container (1). When attached to the 4th
As shown in the figure, a constant space (9) is formed between the wire winding portion (8) and the guide member (4), and further, inside the wire guide member (4). A guide groove (6) is formed along the inner peripheral edge, and the guide groove (6) is formed.
A large number of bearings (7) are movably mounted on the
The weight of the wire guide member (4) is biased toward the inner side, and the load is applied to the guide member (4) while the bearing (7) is moved to the side opposite to the drawn-out portion of the wire to be drawn out. As it is pulled out, the guide member (4) can be lowered downward.

Also, a process of easily pulling out an abnormally wound wire using the wire entanglement prevention device of the present invention will be described.

That is, as shown in FIG. 1, the pack container (1)
When the pull-out wire (10) and the residual wire (11) are wound in a wound state when the wire is wound inside (A), the residual wire (11) is twisted by a force to guide the wire. The space (9) formed by the inclined surface (5) of the member (4) swells up, so that the pull-out wire (10) and the residual wire (11) are unraveled naturally, and the pull-out wire (10) is easy. Further, the load of the wire guide member (4) is biased inward, and the entangled residual wire (11) can easily bulge into the space part, that is, the wire draw-out part. Since the bearing (7) is moved to the opposite side and a load is applied to the drawn portion, no load is applied to the drawn portion, so that the residual wire (11) and the drawn wire (10) entangled can be easily unraveled. So it is issued.

On the other hand, when the wire is wound in the pack container (1),
In the case where a part of the wire is wound in a twisted state (B), the load of the guide member (4) is not applied on the wire winding part (8) at all, and in the space part (9). Even when the twisted part (x) is naturally unraveled and a part of the wire is largely wound and the wire is bent (C), the bent part (y) is naturally in the space (9). When the wire is wound tightly inside the inner cylinder (D), the angle (α) at which the wire can be unraveled by the pulling force of the welding machine (not shown) Minimum 30 ° to maximum
Since it is in the range of 60 °, if the inclination angle (α) of the guide member (4) is adjusted to the maximum of 60 °, there will be no wire winding part closely attached to the inner cylinder (2) as shown by the arrow. As the bearing (7) moves along the guide groove (6) on the side opposite to the wire pull-out portion, the bearing (7) is guided without any resistance. By applying a load to the member (4), the wire is pulled out and the guide member (4) can be lowered.

[Effects of the Invention] As described above, according to the present invention, a space is formed between the upper end portion of the wound wire and the wire guide member, and the entangled portion or the twisted portion of the wire can be easily unwound and pulled out. Becomes,
Further, as described in the embodiment, by forming the inclined surface of the guide member (4) at an appropriate angle within the range of the wire drawing angle (30 ° to 60 °), the guide member (4) is closely attached to the inner cylinder (2). Thus, even if the wire is wound, the wire can be easily pulled out without receiving tension.

[Brief description of drawings]

FIG. 1 is a view showing a state in which a wire is abnormally wound,
FIG. 2 is a sectional view of a conventional wire entanglement prevention device, FIG. 3 is a partially cutaway perspective view of a wire guide member according to the present invention, and FIG. 4 is an operation state diagram of the wire entanglement prevention device of the present invention. (1) …… Pack container (2) …… Inner cylinder (3) …… Outer cylinder (4) …… Guide member (5) …… Sloping surface (6) …… Guide groove (7) …… Bearing (8) ) …… Wire winding part (9) …… Space (10) …… Drawer wire (11) …… Residual wire

Claims (1)

[Scope of utility model registration request] 1. A device for delivering a welding wire enclosed between an inner cylinder and an outer cylinder of a pack container having a double cylinder structure, wherein an inner cylinder (2) and an outer cylinder of the pack container (1) are provided. A wire guide member (4) is provided between the wire guide member (4) and the inner ring (3), and the wire guide member (4) includes an inclined surface (5) having a constant inclination (α) between the inner ring and the outer ring, In addition, a guide groove (6) is formed on the inner side along the inner peripheral edge,
A plurality of bearings (7) are movably provided in the guide groove (6) to prevent the entanglement of the welding wire.