JP5241614B2 - Winding method of wire and lead wire supply material - Google Patents

Description

  The present invention relates to a method for winding a lead wire supplied to a lead-acid battery as welding lead and a lead wire supply material.

  Electrical connection of each part of the lead-acid battery is performed by welding lead-connected parts, but it is necessary to supply different lead (additional lead) depending on the welded part and the shape of the lead parts.

  Conventionally, in manual welding, it was supplied by a lead low bar, but in order to supply lead continuously in the automatic welding method using a robot in recent years, lead is supplied while feeding out the lead wire wound around the bobbin. Things have been done.

  However, since the lead wire wound around the bobbin is in a state where no tension or stress is applied, the winding may be loosened during transportation or welding work.

  In particular, if the lead wire is fed out or stopped during welding work, the lead wire wound around the bobbin loosens and loosens, causing the lead wire to become tangled during welding. However, there is a problem that the operating rate of the welding work is lowered due to unsmooth delivery.

  As a prior art related to winding of a wire rod, when winding a wire rod on a winding bobbin set on a rotating pindle, a lower end of the wire rod is provided on the rotating pindle and inserted into a lower end insertion portion of the wire rod and pressed. A technique is known in which the wire is started to be wound after the winding, and then the wire is wound around the winding bobbin. (For example, Patent Document 1).

JP-A-2002-356275

  The above-mentioned prior art is not related to winding of lead wire. When this technology is applied to winding of lead wire, loosening of the winding occurs during transportation or welding operation, and lead wire becomes tangled during welding. However, it has not been possible to solve problems such as smooth feeding and a reduction in the operation rate of welding work.

  In the present invention, when a lead wire is wound around a bobbin, tension or stress is not applied, so that the winding does not loosen during transportation or welding work, and the lead wire prevents entanglement of the lead wire. Is intended to provide a winding method.

  The present invention is a method for winding a lead wire, wherein the lead wire end is fixed to the end of the bobbin and wound, and the lead wire is arranged and wound around the bobbin without a gap, and the lead is wound around the second stage. Hold the lead wire wound around the first step with the wire, cut the base end of the lead wire fixed to the bobbin at that stage, and place a dummy member in the gap where the first step lead wire is not placed The lead wire winding method is characterized in that after inserting and embedding and flattening the upper surface of the first lead wire array, the lead wire is continuously wound to a predetermined length. Moreover, the lead wire supply material manufactured with the said winding method of the lead wire is used, It is characterized by the above-mentioned.

  According to the present invention, the lead wire wound around the bobbin is not loosened during transportation, and it is also possible to prevent the lead wires from becoming loose when being drawn out from the bobbin and causing entanglement between the lead wires. Therefore, when the lead wire wound up by this method is drawn out from the bobbin and welding work is performed, the operation rate of the welding work can be improved without trouble such that the lead wire is tangled and cannot be drawn out smoothly. it can.

Explanatory drawing which shows the winding start stage of the lead wire which becomes one Example of this invention. Explanatory drawing which shows the step in the middle of winding of the lead wire which becomes one Example of this invention.

  Embodiments of the present invention will be described below.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 and FIG. 2 both show the lead wire winding method of the present invention. In FIG. 1, 1 is a bobbin. 2 is a lead wire. The bobbin 1 is rotated in the direction of the arrow in conjunction with a drive source (not shown) when the lead wire 2 is wound, and the lead wire 2 is wound. The lead wire 2 is inserted into a hole 5 provided on one side of the body portion 4 of the bobbin 2 at the base end portion 3 and stopped, and thereafter, the lead wire 2 is lined up without any gap on the body portion 4 of the bobbin 2 as shown in the figure. Are wound in a spiral. The lead wire wound around the bobbin 2 reaches the other end of the body 4 of the bobbin 2 and then reverses as shown in FIG. Rolled up as an array. FIG. 2 shows a point in time immediately before the second stage arrangement reaches the first winding start stage again.

  When this state is reached, the lead wire base end portion 3 is cut at a portion inserted into the hole 5 provided on one side of the body portion 4 of the bobbin 2 to cut the connection relationship between the lead wire and the bobbin. . However, since the lead wires arranged at the first stage are pressed by the second stage lead wires at this time, the lead wires at the first stage and the lead wires at the second stage are brought into contact with each other by the frictional resistance between the lead wires. There is no sliding, and these lead wires become a lump of lead wires.

  Next, as shown in FIG. 2, the lead dummy wire 6 is inserted into the gap portion where the lead wire is not arranged at the first stage of the lead wire 2 wound around the body of the bobbin 2. It is buried and the upper surface of the first-stage lead wires 2 is made substantially flat. Thereafter, the lead wire 2 is continuously wound up to a predetermined length, and the winding operation is completed.

  In this application, lead is used for the dummy member, but it is not particularly limited as long as it is a material capable of filling a gap where lead wires are not arranged. For example, plastic and other metals can be used. In the case of using a metal, it is preferable to use lead in consideration of contamination of impurities.

  The winding of the lead wire is, for example, 6 to 7 stages, and about 32 lines are arranged in one stage. Therefore, it is about 200 turns with one bobbin. These lead wires have frictional resistance with each other, and the entire wire becomes a lump of lead. And since the fixed part is cut | disconnected by the trunk | drum of the bobbin at the base end part of the lead wire, the lump with which the lead wire was wound will be in the state which slides on the bobbin trunk | drum as a whole. .

  When the lead wire wound up in this way is fed out of the bobbin by an automatic welding machine or the like, the bobbin is rotated freely and the lead wire is pulled out by a necessary length and used as lead. Further, when stopping the lead wire drawing during welding, the lead wire drawing inevitably stops when the lead wire pulling is stopped.

  Therefore, even if the winding is repeatedly pulled out and stopped by automatic welding or the like, excessive lead wire pulling or loosening occurs at that time, and the rotating lead wire partially loosens and individually As a result, it was avoided that the line lost its place and jumped out of the gap.

  Conventionally, the base end of the lead wire is fixed to the reel, so if you repeatedly pull out and stop the winding by automatic welding, etc., the back tension is applied and the extra winding is pulled out. Such a state occurred, and the lead wire partially rotated out from the gap generated at that time. If the lead wire partly loosened and turned around, that part of the wire was lost.

  However, in the present invention, the lead wire is not fixed at the base end portion, so that slippage occurs with the bobbin, thereby absorbing rotation and avoiding extra lead wire drawing. It is considered. In addition, since the contact resistance between lead wires is relatively large, all lead wires are in a lump and slide on the contact surface with the bobbin, so that no extra drawing occurs until the end of rewinding. Thus, it is possible to prevent the line from jumping out of the gap and losing the place of the line, and the welding operation can be performed efficiently.

  Using the bobbin shown in FIG. 1, the base end portion was cut off as shown in FIG. 2, and a lead wire having a thickness of 8 mm was wound into 7 stages and wound in an array of about 41 wires in one stage. The number of windings of the lead wire was 280 with one bobbin. The gap at the beginning of winding was filled with the same lead wire dummy wire as the lead wire used. The wound lead wire was used as lead for welding lead connection parts of lead-acid batteries using an automatic welding machine. As a result, the extra winding is not pulled out, and there is no chance that the lead wire will loosen and turn around at that time, and that part of the wire will not lose its place. there were.

  On the other hand, when the lead wire wound up in the same manner and wound up without cutting off the end of the lead wire was similarly unwound for welding with an automatic welding machine, it was 6 times / There was a situation in which the lead wire partially loosened and turned around every 10 bobbins, and that portion of the wire lost its place, and the bobbin had to be replaced each time. Furthermore, the teaching correction of robot welding has also occurred at a rate of 4 times / 10 bobbins.

1. Bobbin, 2. Lead wire, 3. Base end, 4. Body, 5. Hole.

Claims (2)

  A lead wire winding method, in which the end of the lead wire is fixed to the end of the bobbin and wound up, the lead wire is arranged on the bobbin without any gaps and wound, and the first step with the lead wire wound around the second step Press the lead wire wound around the lead wire, cut the base end of the lead wire fixed to the bobbin at that stage, and insert a dummy member into the gap where the first lead wire is not placed. A lead wire winding method comprising: flattening an upper surface of an array of lead wires in the first stage and then winding the lead wire to a predetermined length.   The lead wire supply material manufactured by the winding method of the lead wire of the said Claim 1.

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