JP3300666B2 - Wire winding method and device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for winding a wire wound on a spool made of plastic or wire.

[0002]

2. Description of the Related Art The winding of a spool winding welding wire will be described below as an example.

In general, a welding wire is manufactured in a continuous processing equipment configuration as shown in FIG. 2, is wound on a plastic spool or a wire spool, and is used for welding a spool having a final product shape of a unit weight of 20 kg or the like. It is formed on the wire 10. That is, the wire drawing material 2 is housed in the carrier 1 and drawn by a wire drawing machine 5 to a predetermined size of the welding wire 10 through a series of rollers 4 including rollers provided on a supply stand 3. After being drawn, it is wound on a spool 9 by a winder 8 via a tension control device 6 and an oiling device 7.

The initial stage of winding the welding wire 10 around the spool 9, that is, the first to third turns of the winding layer on the spool is a spool winding welding wire having a single weight of 20 kg or the like, which is the final product shape. In this case, the initial winding layer is stabilized by using a start-end holding jig (a spatula, a holding roller, a ground shell, etc.) in order to finish in a regular row.

Japanese Utility Model Laid-Open No. 5-76614 discloses a guide device for a long body in a winder, and describes a pressing member. The guide device is adapted to move in a direction intersecting the longitudinal direction of the elongated body following the winding of the elongated body.

[0006]

When the wire is wound on a plastic spool in the initial stage of winding, the pressing operation by the starting end pressing jig is performed at the final stage of the pressing operation, that is, the initial winding of the wire winding layer. On the other hand, depending on the timing of opening after pressing down to about the third volume, the normal winding may be hindered.

[0007] Particularly in the case of automatic winding, the only way to return to normal winding on the way is to stop the line and reverse the line or stratify what is being processed. This led to a drop in yield and a drop in yield.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a method and an apparatus for solving the above-mentioned problems of the prior art and for winding a product wire around a plastic spool in a regular winding state.

[0009]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides an initial stage in the operation of winding a welding wire on a plastic spool, that is, from the first winding to the third winding at the beginning of winding on the spool. This is a method of controlling the opening operation timing of the starting end holding jig in the stage, so that the winding is stably wound in a regular row until the final product shape (20 kg winding welding wire) is obtained. is there.

That is, according to the present invention, when the wire is wound on the spool, the opening timing of the starting end holding jig for forming the base of the wire winding layer in the initial stage of winding is controlled by the starting end holding jig.
A method for winding a wire, characterized in that the tool is controlled within a certain range where the tool does not overlap the starting hole of the spool .

If the opening timing is performed at a position which is at least ± 45 ° at the center angle from the starting end hole of the spool, the normal row winding is not hindered.

Further, the apparatus of the present invention which can preferably carry out the above-mentioned method of the present invention comprises a detecting device for detecting a position at a center angle of ± 50 ° or more from the starting end hole of the wire take-up spool, A wire winding device comprising: a start-end press jig position changing device that opens a start-end press jig according to a detection signal. The detection device may be any of a mechanical device, an electrical device, an optical device, and the like.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS According to the present invention, the opening timing of the starting end holding jig when winding on a plastic spool is performed at an angle away from the winding start end hole, so that the wire at the starting end is opened. The winding can be opened without being affected by the small bend of the winding, and the regular winding can be stably performed until the final product state, and improvement in productivity and yield can be expected.

As shown in FIG. 2, the wire drawing material 2 is guided from a plurality of rollers 4 installed on a supply stand 3 to a wire drawing machine 5 and drawn to a welding wire 10 having a predetermined product size. Thereafter, the product is wound on a plastic spool 9 set on a winder 8 via a tension control device 6 and an oiling device 7 to be commercialized as in the conventional case.

In the present invention, when the welding wire 10 is wound on the spool 9, first, an empty spool 9 is set on the winding machine 8, and the tip of the welding wire 10 is fed into the winding machine 8 to be emptied. When the welding wire 10 is bent at the start end hole 21 of the empty spool 9 or immediately before the start of winding, the start presser attached to the winding machine 8 is started. The jig 30 holds the welding wire 10 and the winding operation starts. FIG. 3 is an explanatory view of a spool showing a state in which the welding wire is wound in the initial stage of winding and a jig for holding the starting end. Start end hole 2 of spool 9
The starting wire holding jig 30 holds the welding wire 10 having the tip portion inserted into the wire 1. The starting end holding jig 30 may be made of metal, plastic, or the like, and the material is not specified. It does not specify the structure. Depending on the material,
Attention should be paid to this point because the welding wire 10 may be damaged.

As shown in FIG. 4, the starting end holding jig 30 is composed of a wire contact roller 31 which comes into contact with the wire 10, a roller support stand 32, and an operating cylinder 33.
After the start of the winding operation, the starting-end holding jig 30 holds the welding wire 10 from the first winding of the first layer portion to the second and third windings, and then is released without using the starting-end holding jig 30. The take-up work is continued and wound up to the final product shape (20 kg),
The work ends. Repeat this work.

Generally, the welding wire 10 set in the starting end hole 21 of the plastic spool immediately after winding is in a slightly bent state (the second to third turns are particularly large in the small bending). If the timing of opening the starting end holding jig 30 overlaps with this small bending state, a state occurs in which the wound welding wire is repelled, an important initial layer is not formed, and the final layer is not formed. Product shape (20k
Until g), it becomes impossible to perform regular winding. It is best to open the start end holding jig 30 at a position farthest from the spool start end hole 21 (on the opposite side of the start end hole).
A central angle of ± 45 ° or more, preferably ± 50
It is effective if performed at a distance of more than °.

FIG. 4 shows a flow chart of the apparatus of the present invention. ± 50 at the center angle from the starting hole 21 of the spool
Including a detection device 41 that detects an area 44 separated by more than
A control device 42 is provided for operating a position changing device 43 that releases the starting end holding jig 30 from the position where the welding wire 10 is pressed based on the detection of the detecting device 41. The release timing control may be performed by mechanically, electrically or optically determining an area at a center angle of ± 50 ° or more from the position of the start end hole 21 of the empty spool and issuing an open signal. Accuracy can be further improved by opening control with speed. In order to obtain the effect of suppressing investment, it is recommended to mechanically obtain a region having a central angle of ± 50 ° or more from the position of the starting end hole 21 of the empty spool.

In the above description, the winding of a welding wire has been described as an example. However, the present invention is not limited to the winding of a welding wire. It can be suitably used also when winding in a regular row.

Next, an example in which the present invention is applied to the welding wire winding device shown in FIG. 2 will be described. FIG. 5 shows the relationship between the displacement angle from the starting end hole shown in FIG. 6 and the occurrence rate of defective winding. The implementation conditions are as follows. Material: Welding wire Diameter: 1.2 mm Winding speed: 800 mpm Winding defect occurrence rate 5 tons per day Manufacture of product spool 20kg per piece (Defective rate per 250 pieces)

[0021]

According to the present invention, when the empty spool is set in the winding machine, the opening timing of the starting end holding jig when performing the winding operation is set at a position at least ± 45 ° at the center angle from the starting end hole of the spool. By doing so, the function of the holding jig at the starting end was maximized, and the final product could be wound in a regular row.

In addition, when a product other than a front row wound product is produced, a reduction in operation due to a line stop, a decrease in yield, and the like is eliminated.
The quality and cost were stable.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an example of a plastic spool wound with a welding wire according to the present invention.

FIG. 2 is a flow sheet showing a welding wire manufacturing facility.

FIG. 3 is an explanatory view of a pool showing a state in which a welding wire is wound in an initial stage of winding and a starting end holding jig.

FIG. 4 is a flowchart of the apparatus of the present invention.

FIG. 5 is a graph showing the relationship between the opening timing of a start-end presser jig and the occurrence rate of defective winding.

FIG. 6 is an explanatory diagram showing a starting end hole and a winding direction.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Carrier 2 Wire drawing material 3 Supply stand 4 Roller 5 Wire drawing machine 6 Tension control device 7 Oiling device 8 Winding machine 9 Spool (made of plastic or wire) 10 Welding wire 21 Spool start end hole 22 Winding direction ( (+ Direction) 30 Starting end holding jig 31 Wire contact roller 32 Roller support stand 33 Operating cylinder 41 Detecting device 42 Control device 43 Position changing device 44 A region separated from the starting end hole by a central angle of ± 50 ° or more.

Continuation of the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B65H 54/28 B23K 9/12 301 B23K 9/133 503 B65H 57/26 B65H 65/00

Claims (3)

(57) [Claims] When the wire is wound on a spool, an opening timing of a starting end holding jig for forming an underlayer of a wire winding layer at an initial stage of winding is determined by the starting end holding jig.
A method for winding a wire, characterized in that control is performed within a certain range not overlapping with an end hole . 2. The method of winding a wire according to claim 1, wherein the opening timing is performed at a position separated by ± 45 ° or more at a central angle from a starting end hole of the spool. 3. A detecting device for detecting a position at a center angle of ± 50 ° or more from a starting end hole of a wire winding spool, and a starting end pressing jig position for opening the starting end pressing jig based on a detection signal of the detecting device. A wire winding device comprising a change device.