JPH07320990A - Lead wire for electronic parts and method and device for manufacturing it - Google Patents

Abstract

PURPOSE:To continuously supply lead wires for electronic parts without allowing hard projections formed at the welds of lead blanks to tabs to come into contact with a guide member by sticking the lead wires to a belt-like sheet metal at regular intervals and rolling up the sheet metal in a coil-like state. CONSTITUTION:After welding tabs 4 composed of aluminum bars and pressing the tabs 4 into platy shapes, one ends 3a of the lead blanks 3 of lead wires 1 for electronic parts obtained by punching are put on projecting parts 2a of a belt-like sheet metal 2 and welded to the parts 2a with a laser welding device. Then the sheet metal 2 fitted with the lead wires 1 for electronic parts welded to the projecting parts 2a with the laser welding device at regular intervals is carried in the direction A and rolled up in the direction B into a coil-like state. Therefore, the working rate of such an automatic device as the tabbing device, etc., can be improved, because the lead wires for electronic parts can be supplied stably while the damage to a guide member is prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lead wire for electronic parts and a method and apparatus for manufacturing the same, and in particular, a tab made of aluminum is welded to a lead material, and one end of the tab is pressed into a flat plate shape, followed by pressing. A tab generated during press working by fixing the lead material to the convex portion of the strip-shaped thin plate on which the convex portions in the width direction are formed at equal intervals without changing the rotation direction of the processed tab. Aligning the burr direction of the product, winding the strip-shaped thin plate into a coil as it is to make a finished electronic component lead wire, which can be directly supplied to a tab attachment device for aluminum foil etc. without going through a parts feeder. Therefore, there is no risk that the surface with burrs due to press working of the flat plate part will be tabbed toward the aluminum foil side, and damage due to tabling of the aluminum foil is prevented. Improves the performance of electronic components such as capacitors, innovative electronic component leads can revolutionize the supply of the electronic component leads and to their manufacturing method and apparatus.

[0002]

2. Description of the Related Art Conventionally, a lead wire for an electronic component is formed by welding an aluminum tab to a lead material, press-forming the tab to form a flat plate portion, and then trimming by pressing to obtain a constant outer shape. Is manufactured by molding
In addition, in this case, the electronic component lead wires are separately manufactured one by one, and after manufacturing, each electronic component lead wire is shipped in a disassembled state.

Further, a sharp projection is often formed by welding at the welded portion of the lead material and the tab, and a burr is formed by press working on the outer peripheral portion of the flat plate portion, and the projection and the burr are processed. As a result, aluminum is hardened and is in a very hard state.

On the other hand, the supply of the electronic component lead wires is generally performed by using a spiral type vibrating parts feeder device, and after the lead materials are aligned so as to face downward,
The lead material is inserted into the gap between the two guide members that are spaced apart by a predetermined distance, and the lead material is transported by gravity or by vibrating the two guide members (in the case of a straight-ahead vibrator), and tabbed. It was carried out by a method of supplying it to a device or the like.

However, when the electronic component lead wire is transported in the guide member, the electronic component lead wire is transported while rotating, so that the welding portion rubs the edge of the guide member severely. However, the welded part is transported while rubbing the edge, and the very hard protrusion scrapes off the surface of the edge, and the guide member becomes unusable at an early stage, and the surface roughness of the edge becomes large. However, there is a drawback that the lead wire of the electronic component is caught on the rough edge and cannot be supplied smoothly.

Therefore, conventionally, it has been necessary to remove the guide member fairly frequently and rework the edge smoothly, or to replace the guide member.

Further, in the production of electrolytic capacitor elements, the flat plate portion of the electronic component lead wire is brought into close contact with the aluminum foil, and the flat plate portion is fixed to the aluminum foil by means of a burring process or the like (so-called tab attachment). If a certain surface is fixed in contact with the aluminum foil, there is a drawback that burrs damage the aluminum foil or break the aluminum foil to significantly deteriorate the electrical performance of the electrolytic capacitor element.

To prevent the aluminum foil from being scratched,
This can be prevented by contacting the burr-free surface of the flat plate part with the aluminum foil and subjecting it to a burring process. It is extremely difficult to closely attach the aluminum foil to the aluminum foil and tab it. Especially, in the production of a small-sized electrolytic capacitor element, the flat plate portion of the lead wire of the electronic component used is further downsized, which is almost impossible.

In the conventional electronic component lead wire supplied without determining the direction of the flat plate portion, there is a 50% probability that the burred surface of the flat plate portion will come into contact with and adhere to the aluminum foil. In the state, there is a sufficient possibility that the burr will bite into the aluminum foil and damage it and deteriorate the electrical characteristics, and in an extreme case, there was a possibility that the aluminum foil would be torn and defective.

In order to manufacture high quality electronic parts (eg electrolytic capacitors), the electronic part lead wires are washed,
It is necessary to perform chemical conversion treatment, which is often used. However, in the prior art, the electric power was supplied to the lead wires of the electronic components in a disjointed state to perform the treatment, so that the work becomes complicated and the work efficiency is improved. It was difficult to improve.

[0011]

SUMMARY OF THE INVENTION The present invention has been made in order to eliminate the above-mentioned drawbacks of the prior art. The object of the present invention is to strip thin strips (so-called hoop members) at equal intervals. By fixing the lead wires and winding them up in a coil shape, the electronic parts lead wires that were supplied to the tab attaching device while being guided by the guide members of the parts feeder in the state of being separated one by one with the guide members The purpose is to allow the hard protrusions generated in the welded portion of the lead material and the tab to be continuously supplied without contacting the guide member without guiding and thereby preventing the guide member from being damaged by the hard protrusions. By eliminating the instability of the supply of electronic component lead wires due to damage to the guide member, the operating rate of automatic machines such as tab attachment devices can be dramatically improved. That.

Another object is to weld a tab made of aluminum to a lead material, press one end of the tab into a flat plate to manufacture an electronic part lead wire, and then press the electronic part lead wire at the time of pressing. By adhering to the widthwise convex portions formed at equal intervals on the strip-shaped thin plate without changing the phase in the rotation direction, it is possible to align the direction of burrs generated during press working. This eliminates the risk of tabs such as burrs on the flat plate facing the aluminum foil side, preventing damage to the aluminum foil due to tabping, and preventing performance deterioration of electronic components due to damage to the aluminum foil. To improve the electrical performance of electronic components.

Still another object is to fix the electronic component lead wires at equal intervals to the strip-shaped thin plate in which the feed holes are punched at regular intervals so that the sprockets can be engaged with the feed holes to convey the strip-shaped thin plate. It is possible to realize an extremely epoch-making supply method of electronic component lead wires which can continuously supply electronic component lead wires to a tab attaching device or the like without using a parts feeder or the like.

Still another object is to weld a tab made of aluminum to a lead material, press one end of the tab into a flat plate to manufacture a lead wire for an electronic component, and then to rotate the lead wire for the electronic component. It is possible to continuously supply the burr of the flat plate portion in a certain direction by soldering to the widthwise convex portions formed at equal intervals on the strip-shaped thin plate without changing the phase. After cutting the supplied electronic component lead wire under the strip thin plate and fixing it to the aluminum foil to make a product, the remaining strip of the electronic component lead wire is melted from the remaining strip thin plate not used as a product. By doing so, it is possible to easily remove it, and by this, the strip thin plate can be reused to effectively utilize resources and reduce the manufacturing cost.

Still another object is to weld a tab made of aluminum to a lead material, press one end of the tab into a flat plate shape, and thereafter, at equal intervals on a strip-shaped thin plate without changing the phase in the rotational direction of the tab. By fixing to the formed convex portion in the width direction and further winding up in a coil shape to obtain a completed electronic component lead wire, the heat used for fixing the electronic component lead wire to the convex portion of the strip-shaped thin plate This is to minimize the influence and prevent deformation such as distortion of the strip-shaped thin plate, so that it can be easily wound into a coil, and the outer shape after winding can be handled as a constant shape. That is.

Still another object of the present invention is that, by the above-mentioned constitution, the electronic component lead wire wound in a coil shape can be washed as it is during the cleaning and chemical conversion treatment of the electronic component lead wire so that the power can be supplied in a short time and easily. It is to be able to perform chemical conversion treatment on a large number of electronic component lead wires at the same time, and to thereby make it possible to produce high quality electronic component lead wires extremely efficiently.

Still another object is to weld a tab made of aluminum to a lead material, press one end of the tab into a flat plate shape, and then, at equal intervals on a strip-shaped thin plate without changing the phase in the rotational direction of the tab. By fixing to the formed convex portion in the width direction and further winding up in a coil shape to form an electronic component lead wire, the electronic component lead wire can be easily handled or handled when it is supplied to a tab attaching device. This is to ensure that the electronic component lead wire can be supplied without coming off from the strip-shaped thin plate.

Still another object is to use an electronic component lead wire manufacturing apparatus to weld an aluminum tab to a lead material and press one end of the tab into a flat plate to produce an electronic component lead. The feeding device conveys the electronic component lead wire to the fixing device without changing the phase in the rotation direction, and conveys the belt-shaped thin plate to the fixing device to form the strip-shaped thin plate in which widthwise convex portions are formed at equal intervals. By fixing the lead material of the electronic component lead to the convex portion and further winding the strip-shaped thin plate to which the electronic component lead wire is fixed by a winding device into a coil, the electronic component lead wire that is fixed to the strip-shaped thin plate and wound into a coil This is to enable continuous, efficient and low-cost manufacturing.

[0019]

In summary, an electronic component lead wire according to the present invention (claim 1) is an electronic component lead in which a tab made of aluminum is welded to a lead material and one end of the tab is pressed into a flat plate shape. It is characterized in that lines are fixed to the convex portions of a strip-shaped thin plate having convex portions in the width direction formed at equal intervals, and the strip-shaped thin plate is wound up in a coil shape.

Further, in the method for manufacturing a lead wire of an electronic component according to the present invention (claim 2), a tab made of aluminum is welded to a lead material, one end of the tab is pressed into a flat plate shape, and then the lead material is formed. It is characterized in that it is fixed to the convex portions of the strip-shaped thin plate in which the convex portions in the width direction are formed at equal intervals.

In the electronic component lead wire according to the present invention (claim 3), an aluminum tab is welded to a lead material, and one end of the tab is pressed into a flat plate to form an electronic component lead wire at equal intervals. The strip-shaped thin plate is formed by welding the strip-shaped thin plate on the strip-shaped thin plate on which a convex portion in the direction is formed, and winding the strip-shaped thin plate into a coil.

Further, in the method for manufacturing a lead wire for an electronic component according to the present invention (claim 4), a tab made of aluminum is welded to the lead material, and one end of the tab is pressed into a flat plate shape, and then the lead material is formed. It is characterized in that welding is carried out on the convex portions of a strip-shaped thin plate in which convex portions in the width direction are formed at equal intervals.

In the electronic component lead wire according to the present invention (claim 5), an aluminum component tab is welded to a lead material, and one end of the tab is pressed into a flat plate to form an electronic component lead wire at equal intervals. The strip-shaped thin plate is formed by winding the strip-shaped thin plate in a coil shape by soldering the strip-shaped thin plate to the projecting portion.

In the method for manufacturing a lead wire of an electronic component according to the present invention (claim 6), a tab made of aluminum is welded to a lead material, and one end of the tab is pressed into a flat plate shape, and then the lead material is formed. It is characterized in that the strip-shaped thin plate on which widthwise convex portions are formed at equal intervals is soldered to the convex portions.

An electronic component lead wire manufacturing apparatus according to the present invention (claim 7) is an electronic component lead wire manufacturing apparatus for welding an aluminum tab to a lead material and pressing one end of the tab into a flat plate shape. , A conveying device that conveys a strip-shaped thin plate in which convex portions in the width direction are formed at equal intervals, and the electronic component lead wires manufactured by the electronic component lead wire manufacturing apparatus are supplied with their rotational phases aligned in a certain direction. Electronic component lead wire supply device, fixing device for fixing the electronic component lead wire to the convex portion of the belt-shaped thin plate being conveyed, and winding device for winding the belt-shaped thin plate to which the electronic component lead wire is fixed in a coil shape And a structure for continuously manufacturing the electronic component lead wire.

[0026]

In the electronic component lead wire of the present invention, a tab made of aluminum is welded to a lead material, one end of the tab is pressed into a flat plate shape, and then a thin strip plate is formed without changing the phase in the rotational direction of the tab. Since it is fixed to the convex parts in the width direction formed at intervals and further wound up in a coil shape to form an electronic component lead wire, there is no risk of tabs such as burrs on the flat plate facing the aluminum foil side. Therefore, it is possible to prevent the performance deterioration of the electronic component due to the damage of the aluminum foil and improve the electrical performance.

Further, since a large number of electronic component lead wires are fixed to a strip-shaped thin plate and then wound up in a coil to form a completed electronic component lead wire, cleaning and chemical conversion treatment can be collectively and efficiently performed. Further, the sprocket is engaged with the feed hole so that the belt-shaped thin plate can be conveyed, and the electronic component lead wires can be continuously supplied to the tab attaching device or the like without using a parts feeder or the like.

After the aluminum tab is welded to the lead material and one end of the tab is pressed into a flat plate shape, the tab material is conveyed to the fixing device without changing the phase in the rotational direction of the tab, and the strip-shaped thin plate is attached to the fixing device. After the lead material is fixed to the convex portion of the strip-shaped thin plate, the winding operation of the strip-shaped thin plate to which the electronic component lead wire is fixed by the winding device can be continuously processed. It can be continuously and efficiently manufactured at low cost.

[0029]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the embodiments shown in the drawings. First, referring to FIG. 1 and FIG. 2, electronic component lead wire 1
Is fixed to the strip-shaped thin plate 2 and is composed of a lead material 3 and a tab 4 made of aluminum.

The strip-shaped thin plate 2 includes a plurality of electronic component lead wires 1.
Is a thin plate such as a stainless steel plate having a thickness of 0.3 mm, and in FIG. 5 and FIG. 6, a wide thin plate has a plurality of strip-shaped thin plates 2 in the width direction. The strip-shaped thin plate 2 has a shape slightly larger than the wire diameter of the lead material 3, for example, a convex portion 2a formed to have a width of about 1 mm. For example, it is a thin plate having a width of 5 mm and formed in a large number at regular intervals, and concave portions 2c having the same shape as the convex portions 2a are formed on opposite sides of the convex portions 2a. Further, circular feed holes 2b are formed at regular intervals.

The lead material 3 is a wire made of aluminum which is a part of the electronic component lead wire 1. The wire diameter is selected and used depending on the size of the electronic component lead wire 1. The lead material 3 used for the capacitor element has a wire diameter of about 0.1 to 1 mm.

The tab 4 is a bar made of aluminum which is a part of the electronic component lead wire 1, and has one end welded to the one end 3b of the lead material 3 by a known device to form a welded portion 1a. As in the conventional case, a hard projection may be formed on the welded portion 1a by processing.

After one end of the tab 4 is pressed into a flat plate shape, the outer shape is punched out to form a flat plate portion 4a formed into a predetermined shape. At this time, a burr 4b formed by press punching is formed on the outer peripheral portion of the flat plate portion 4a as in the conventional case.

As described above, the tab 4 which is a bar made of aluminum is welded to the one end 3b of the lead material 3 (see FIG. 7).
(A)), and further, after press-working into a flat plate shape, the outer shape is press-pressed to produce an electronic component lead wire 1 (FIG. 7B), and then one end 3 of the lead material 3 of the electronic component lead wire 1 is manufactured.
a is fixed to the convex portion 2a of the strip-shaped thin plate 2 by an appropriate method.

Then, a large number of electronic component lead wires 1 are fixed to the strip-shaped thin plate 2 at a constant interval by the method described above.
As shown in FIG. 1, the electronic component lead wire 1 as a coiled finished product is obtained by transporting in the direction of arrow A and winding in the direction of arrow B, and the electronic component lead wire 1 is shipped in this state. Become.

In the method of manufacturing a lead wire for an electronic component according to the present invention, in FIG. 1, a tab 4 made of aluminum is welded to the lead material 3 (FIG. 1 (a)), and one end of the tab 4 is flattened. After the press working (FIG. 1B), the strip-shaped thin plate 2 in which the lead material 3 is formed with the widthwise convex portions 2a at equal intervals.
This is a method of fixing to the convex portion 2a (FIG. 1 (c)).

In the first embodiment of the present invention, as shown in FIGS. 1 to 3, a tab 4 which is an aluminum rod is welded to a lead material 3 and further pressed into a flat plate shape, and then the outer shape is press-punched. The one end 3a of the lead material 3 of the electronic component lead wire 1 is placed on the convex portion 2a of the strip-shaped thin plate 2 and heated and welded by the laser welding device 5, and fixed to the convex portion 2a.

Then, as shown in FIG. 2, a large number of electronic component lead wires 1 are fixed to the convex portions 2a of the strip-shaped thin plate 2 by heating with the laser welding device 5 as described above, as shown in FIG.
The product is conveyed in the direction of arrow A and rolled up in the direction of arrow B to obtain a coiled finished product.

Here, the electronic component lead wire 1 is manufactured by welding the tab 4 to the lead material 3 and then press working into a flat plate shape, and after the press working, the electronic component lead wire 1 is strip-shaped without changing the rotational direction phase. Since the thin plate 2 is placed on the convex portion 2a and welded, the flat plate portion 4a faces the same direction and is fixed to the strip thin plate 2, and the burr 4 of the flat plate portion 4a is fixed.
All of b are also aligned in a certain direction, and none of them face the opposite side.

Since the heat generated by welding acts only on the convex portions 2a, the thin strip plate 2 is prevented from being distorted or deformed under the influence of heat.

In the method of manufacturing a lead wire for an electronic component according to the first embodiment of the present invention, the tab 4 made of aluminum is welded to the lead material 3, one end of the tab 4 is pressed into a flat plate, and then the lead is formed. This is a method of welding the material 3 to the convex portions 2a of the strip-shaped thin plate 2 having the convex portions 2a in the width direction formed at equal intervals.

In the second embodiment of the present invention, as shown in FIG. 4, the tab 4 which is an aluminum bar is welded to the lead material 3 and further pressed into a flat plate shape, and then the outer shape is punched out to form an electronic component lead. One end 3a of the lead material 3 of the wire 1 is placed on the convex portion 2a of the strip-shaped thin plate 2 to which cream solder is applied, conveyed to an automatic soldering device (not shown) such as a reflow soldering device, and heated. The lead material 3 is soldered to the convex portion 2a of the strip-shaped thin plate 2 with solder 2d.

In the method of manufacturing a lead wire for an electronic component according to the second embodiment of the present invention, the tab 4 made of aluminum is welded to the lead material 3 and one end of the tab 4 is pressed into a flat plate shape, and then the lead is formed. This is a method of soldering the material 3 to the convex portions 2a of the strip-shaped thin plate 2 having the convex portions 2a in the width direction formed at equal intervals by solder 2d.

Further, in the manufacturing apparatus (not shown) for the electronic component lead wire according to the embodiment of the present invention, the belt-shaped thin plate 2 on which the convex portions 2a in the width direction are formed at equal intervals by the conveying device (not shown) is used. While carrying, the electronic component lead wire 1 is manufactured by welding an aluminum tab 4 to the lead material 3 with an electronic component lead wire manufacturing device (not shown) and pressing one end of the tab 4 into a flat plate shape. The electronic component lead wire 1 is supplied with an electronic component lead wire supply device (not shown) with the rotational phase aligned in a certain direction, and is fed, and the convex portion 2 of the strip-shaped thin plate 2 is conveyed.
It is configured to be fixed to a by a fixing device (not shown), and the strip-shaped thin plate 2 to which a large number of electronic component lead wires 1 are fixed at regular intervals is wound into a coil by a winding device to form a finished product. Cage, carrier device, electronic component lead wire manufacturing device,
The electronic component lead wire supply device, the fixing device, and the winding device are all configured as one machine.

The present invention is configured as described above,
The operation will be described below. The electronic component lead wire 1 of the present invention is obtained by welding and pressing the aluminum tab 4 to the lead material 3, supplying the strip-shaped thin plate 2 to the convex portion 2a of the strip-shaped thin plate 2 at a constant interval. Until sticking, all can be continuously and automatically manufactured by one machine with extremely high efficiency.

Since the electronic component lead wire 1 is wound in a coil shape as shown in FIG. 2, handling such as transportation is very easy as compared with the conventional electronic component lead wire 1,
Further, it is possible to prevent the lead material 3 from being twisted or bent due to the conveyance.

The shape of the strip-shaped thin plate 2 is a convex portion 2a and a concave portion 2c.
Since they are provided in the same shape on opposite sides, as shown in FIG. 5, a wide thin plate as a raw material can be effectively used without wasting it.

In the case of manufacturing a capacitor element, a sprocket (not shown) is engaged with the feed hole 2b to attach the electronic component lead wire 1 together with the strip-shaped thin plate 2 to the tab attaching device of the capacitor element manufacturing apparatus (not shown). It is conveyed to (not shown), the electronic component lead wire 1 is cut at the lower part of the strip-shaped thin plate 2 to be separated from the strip-shaped thin plate 2, and the flat plate portion 4a is closely adhered to an aluminum foil (not shown) to be subjected to the boring process The process of fixing the aluminum foil to the aluminum foil is consistently performed.

In this case, the electronic component lead wire 1 is transported by
Since the sprocket is rotated and the strip-shaped thin plate 2 that engages with the sprocket is simply unwound and conveyed, the conventional spiral type parts feeder, straight-line vibrator, etc. are not required, and the hard protrusions of the welded portion 1a are replaced by the parts feeder. There is no problem of scratching, and the electronic component lead wire 1 can be stably supplied to the tab attaching device for a long period of time without any support.

Since the burrs 4b of the flat plate portion 4a are always supplied in a uniform direction, the surface without the burrs 4b can be brought into close contact with the aluminum foil and tabbed by a burring process. It is possible to reliably prevent the aluminum foil from being damaged by 4b.

In the above embodiments, the method of fixing the lead material to the strip-shaped thin plate has been described as welding or soldering to the strip-shaped thin plate of the stainless steel plate, but the strip-shaped thin plate is limited to the stainless steel plate. Instead, it may be another metal strip-shaped thin plate, such as a brass plate, a copper plate, a beryllium copper plate, a soft iron plate, or a thin plate made of synthetic resin depending on the method of fixing the lead wires. The fixing method may be adhesion with an adhesive.

[0052]

As described above, according to the present invention, the lead wires for electronic parts are fixed to the strip-shaped thin plate (so-called hoop material) at equal intervals.
Since it was made by winding it into a coil,
The hard projections that are generated at the weld between the lead material and the tab without guiding the electronic component lead wires that were being supplied to the tab attaching device, etc. Has the effect that it can be continuously supplied without contacting the guide member,
As a result, it is possible to prevent the guide member from being damaged by the hard protrusions and to eliminate the instability of the supply of the electronic component lead wire due to the damage to the guide member, thereby dramatically improving the operation rate of the automatic machine such as the tab attaching device. There is an effect that can be made.

Further, an aluminum tab is welded to a lead material, one end of the tab is pressed into a flat plate to manufacture an electronic component lead wire, and then the phase of the electronic component lead wire in the rotational direction at the time of pressing is produced. Since it is fixed to the widthwise convex portions formed at equal intervals on the strip-shaped thin plate without changing, there is an effect that the direction of burrs generated during press working can be aligned, and as a result, the flat portion There is no risk of tabs such as burrs being attached to the aluminum foil side, damage to the aluminum foil due to tab attachment can be prevented, and performance deterioration of electronic components due to damage to the aluminum foil can be prevented. This has the effect of improving the electrical performance of the component.

Furthermore, since the electronic component lead wires are fixed to the strip-shaped thin plate in which the feed holes are formed at regular intervals, the strip-shaped thin plates can be conveyed by engaging the sprockets with the feed holes. Therefore, there is an effect that it is possible to realize an extremely epoch-making method of supplying electronic component lead wires that can continuously supply electronic component lead wires to a tab attaching device or the like without using a parts feeder or the like.

Further, an aluminum tab is welded to the lead material, one end of the tab is pressed into a flat plate to manufacture an electronic component lead wire, and then the phase of the electronic component lead wire in the rotational direction is not changed. Since the width-direction convex portions formed on the strip-shaped thin plate at equal intervals are soldered, the burr on the flat plate portion can be continuously supplied in a fixed direction, and the supplied electronic component lead wires can be supplied. After cutting below the strip thin plate and fixing it to the aluminum foil to make a product,
The remaining part of the electronic component lead wire can be easily removed from the strip-shaped thin plate that is not used as a product by melting the solder, and as a result, the strip-shaped thin plate can be reused to effectively use resources and reduce manufacturing costs. There is an effect that reduction can be achieved.

Further, aluminum tabs were welded to the lead material, one end of the tabs was pressed into a flat plate, and the tabs were formed at equal intervals on the strip-shaped thin plate without changing the phase in the rotational direction. Since it was fixed to the convex portion in the width direction and further wound up into a coil to form a finished electronic component lead wire, the influence of heat used when fixing the electronic component lead wire to the convex portion of the strip-shaped thin plate Is effective in preventing deformation such as distortion of the strip-shaped thin plate, and as a result, it is possible to easily wind it into a coil shape and to make the outer shape after winding a constant shape to facilitate handling.

Further, according to the above-mentioned constitution, when cleaning and forming the electronic component lead wires, the electronic component lead wire wound in the coil shape can be cleaned as it is and supplied with power, so that a large number of electronic component lead wires can be easily manufactured in a short time. The chemical conversion treatment can be performed at the same time, and as a result, high quality electronic component lead wires can be manufactured very efficiently.

Furthermore, after tabs made of aluminum were welded to the lead material and one end of the tab was pressed into a flat plate, the tabs were formed at equal intervals on the strip-shaped thin plate without changing the phase in the rotational direction of the tab. Since it is fixed to the convex portion in the width direction and further wound into a coil to form the electronic component lead wire, it is possible to easily handle the electronic component lead wire or to supply it to the tab attaching device. There is an effect that the electronic component lead wire can be surely supplied without being separated from the strip-shaped thin plate.

An electronic component lead wire manufacturing apparatus welds an aluminum tab to a lead material and presses one end of the tab into a flat plate to produce an electronic component lead. The electronic component is transferred to the fixing device without changing the phase of the component lead wire in the rotation direction, and the thin belt plate is transferred to the fixing device to form convex parts in the width direction at equal intervals on the convex part of the thin plate. Since the lead material of the lead is fixed, and the strip-shaped thin plate to which the electronic component lead wire is fixed by the winding device is wound up into a coil, the electronic component lead wire that is fixed to the strip-shaped thin plate and wound into a coil is continuously formed. The effect that it can be manufactured efficiently and at low cost is obtained.

[Brief description of drawings]

FIG. 1 is a perspective view showing a state in which an aluminum tab is welded to a lead material, pressed, and fixed to a convex portion of a strip-shaped thin plate.

FIG. 2 is a plan view showing a state where a strip-shaped thin plate to which a large number of electronic component lead wires are fixed is wound into a coil.

FIG. 3 is a perspective view showing a state in which an electronic component lead wire is welded to a convex portion of a strip-shaped thin plate.

FIG. 4 is a front view showing a state of an electronic component lead wire soldered to a convex portion of a strip-shaped thin plate.

FIG. 5 is a partial plan view of a punched thin plate material.

FIG. 6 is a partial perspective view showing a state in which a large number of strip-shaped thin plates are separated from a punched thin plate material.

[Explanation of symbols]

 1 electronic component lead wire 2 strip thin plate 2a convex portion 3 lead material 4 tab 5 laser welding device as an example of fixing device

Claims (7)

[Claims] 1. A convex portion of a strip-shaped thin plate in which a tab made of aluminum is welded to a lead material and one end of the tab is pressed into a flat plate to form a convex portion in a width direction at equal intervals with lead wires of an electronic component. A lead wire for electronic parts, characterized in that the lead wire is fixed to a wire and the band-shaped thin plate is wound up in a coil shape. 2. A tab made of aluminum is welded to a lead material, and one end of the tab is pressed into a flat plate shape, and then the lead material is provided with the convex portions of a strip-shaped thin plate in which convex portions in the width direction are formed at equal intervals. A method for manufacturing a lead wire of an electronic component, which is characterized in that the lead wire is fixed to a portion. 3. A convex portion of a strip-shaped thin plate in which a tab made of aluminum is welded to a lead material and one end of the tab is pressed into a flat plate to form a convex portion in the width direction at equal intervals with lead wires of an electronic component. A lead wire for an electronic component, which is formed by welding the strip-shaped thin plate to a coil shape by welding to the above. 4. A tab made of aluminum is welded to a lead material, one end of the tab is pressed into a flat plate shape, and the lead material is then provided with the convex portions of a strip-shaped thin plate having convex portions in the width direction formed at equal intervals. A method for manufacturing a lead wire of an electronic component, which comprises welding to a portion. 5. A convex portion of a strip-shaped thin plate in which a tab made of aluminum is welded to a lead material, and one end of the tab is pressed into a flat plate to form a convex portion in the width direction at equal intervals with lead wires of an electronic component. A lead wire for an electronic component, which is formed by winding the strip-shaped thin plate in a coil shape by soldering to an electronic component. 6. A tab made of aluminum is welded to a lead material, one end of the tab is pressed into a flat plate shape, and then the lead material is formed into a convex shape of a strip-shaped thin plate in which convex portions in the width direction are formed at equal intervals. A method for manufacturing a lead wire for an electronic component, which comprises soldering to a portion. 7. An electronic component lead wire manufacturing apparatus that welds an aluminum tab to a lead material and presses one end of the tab into a flat plate shape, and conveys a strip-shaped thin plate having widthwise convex portions formed at equal intervals. And an electronic component lead wire supply device for supplying the electronic component lead wire manufactured by the electronic component lead wire manufacturing apparatus with its rotational direction phase aligned in a certain direction, and the electronic component lead wire being conveyed. A fixing device for fixing to the convex portion of the strip-shaped thin plate, and a winding device for winding the strip-shaped thin plate to which the electronic component lead wire is fixed in a coil shape, so as to continuously manufacture the electronic component lead wire. An apparatus for manufacturing a lead wire of an electronic component, which is configured.