JPH02263574A - Manufacturing device for lead wire - Google Patents

Abstract

PURPOSE:To manufacture a lead wire of a joining part of an alloy layer at high speed by sending out an Al wire and a Cp wire in order, cutting the wires, holding these by a chuck of an intermittent rotary table, heating, temperature-raising the Al wire in a semimolten state by a burner during stoppage and pushing the Cp wire in round bar parts of the Al wire. CONSTITUTION:The Al wire 2 is formed of round bar parts and flat parts alternately and sent out by hitching difference parts in level by feed rollers 4 and the difference parts in level are held by an Al chuck 5 to cut the flat parts by an Al cutter 6. The round bar parts of the Al wire 2 are fed into the table chuck 8 of the intermittent table 7 and held thereby. The Al wire 2 is transferred intermittently and the round bar parts are cut by an Al round bar cutter 9. Further, the end face is recessed by a punch 10 and the burner 12 is set up on the stopping position of the intermittent table 7 and the Al wire 2 is heated and temperature-raised. The copper substrate tinning iron wire Cp wire 1 is passed through feed rollers 15 and the tip is cut in a wedge shape by a wedge cutter 17. The Cp wire 1 tip is pushed in the Al line 2 and joined together and then, cooled and taken out by sandwiching it between projecting parts of a taking-out belt 19. By this method, the lead wire 21 with stable joining strength between the Al wire and Cp wire is obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a device for joining a first member and a second member, particularly for joining an Ae wire and a copper-plated tin wire (hereinafter referred to as Cp wire) for electrolytic capacitors. The present invention relates to manufacturing equipment for producing lead wires.

2. Description of the Related Art Conventionally, an arc welding apparatus having a configuration as shown in FIG. 4 has been proposed as a capacitor lead wire manufacturing apparatus of this type.

This is done by holding the Ae conductor with e-pole welding electrodes 37a and 37b, holding the Cp wire 1 with e-pole conductor chuck 38, driving the conductor chuck 38 in an arc shape in the direction of the arrow, and as shown in FIG. After bringing Ae 1s and 2 into contact with cpisl, they are pulled apart slightly to generate an arc 39, and the heat melts the Ae conductor and Cp4111, and when they are butted together, iron and copper are formed at the boundary between the two, as shown in Figure 6. This was a method of forming and joining an alloy portion 2a of , aluminum, and tin.

Problems to be Solved by the Invention In such a conventional device, dissimilar metals such as iron and copper are scattered and attached to the Ae conductor wire by arc sputtering 40 during bonding as shown in FIG. copper.

Since the joint part 3 made of alloys such as tin is exposed to the outside, fine particles of these metals are used to form capacitor electrodes such as Ae foil or intercalating paper (electrolytic paper) when assembling the capacitor.
Fine powder that is generated by friction with each other in the vibrating transducer may adhere to the AJ wire, causing leakage current defects, which are important characteristics of electrolytic capacitors, and short circuit defects, which are important characteristics of electrolytic capacitors. This will have a huge negative impact. In addition, as is well known, Ae is a metal that quickly forms an oxide film, so the oxide film remains or gets mixed in inside the alloy joint, creating defective parts, resulting in insufficient welding strength or The dispersion becomes large.

Furthermore, because the conductor chuck 38 of the pole shown in FIG. .

The present invention solves these problems, and is
This is a device for high-speed joining of lead wires that embodies the joining method shown in Publication No. 8-41154, and the joining metal layer of Ae wire and Cp wire is not exposed to the outside, and the lead wire has extremely stable welding strength. The present invention aims to provide an apparatus for manufacturing lead wires for capacitors such as electrolytic capacitors that can be automatically produced at high speed.

Means for Solving the Problems An intermittent rotary table section equipped with a plurality of chucks for holding a hoop-shaped first member is disposed approximately in the center of the apparatus,
First, the first member is fed out onto the outer periphery of the table portion.
The first member is positioned and held in synchronization with the speed of the first member to be sent out with the member feeding roll unit, cut into a predetermined length, and fed so that the first member protrudes into the chuck of the intermittent rotary table unit. a first member feeding section for supplying a first member; a second member feeding roll portion for feeding out the member; 1. A second member feeding pushing part is provided which holds the second member while synchronizing with the speed of the second member being sent out, cuts it into a predetermined length, and sends it out linearly, Melt the protruding first member.

After heating to a semi-molten state and raising the temperature, the first member and the second member are brought into contact and joined, and after the temperature of the joint portion of the lead wire is lowered, it is taken out from the intermittent rotary table section.

Operation With this configuration, the AQIIA and Cp wires are automatically sent out and cut in sequence, held in the chuck of the intermittent rotary table, and the Ae wire is staged with multiple burners burning flammable gas when the rotary table is in the intermittent stop position. CpM is heated to a semi-molten state, and heated to an extent that the shape does not collapse.
The Ae wire is pushed into the Ae wire rod portion, an alloy layer is formed inside the Ae wire, and the wire is bonded.Then, the bonded portion is cooled and then taken out.

Embodiment FIG. 1 is an overall configuration diagram of an electronic component lead wire manufacturing apparatus according to an embodiment of the present invention.

First, as shown in Fig. 1, the AQ conductor is formed by alternating round bar parts and flat flat parts.It passes through a straightening roller 3, and the stepped part between the flat part and round bar part is removed by a feed claw roll 4. Hook it up and send it out in the direction of arrow A. Then, after holding the stepped part between the round bar part and the flat part with the Ae chuck 5, cut the flat part of the AQ conductor with the Ae cutter 6 as shown in Fig. 3(a). The Ae conductor is cut into pieces and fed into the table chuck 8 of the intermittent table 7 shown in FIG. The held A[wire 2 is intermittently transferred in the direction of arrow B, and the round bar part of the Ae conductor is moved to position A as shown in FIG. 3(b) at position C.
e Cut to any size using the round bar cutter 9. Furthermore, at position D shown in FIG. 1, the tip 11 of the punch 10 is continuously pressed against the end surface of the Ae conductor rod section to form a concave depression 23 on the Aee end surface as shown in FIG. 3(C).

A plurality of burners 12 for burning flammable gas are installed at the stopping position of the intermittent table 7 in the section from E to F, and as shown in FIG. The temperature of the Ae wire 2 is increased stepwise to a semi-molten state.

On the other hand, at position G, the CP conductor passes through the correction roller 14,
While sandwiching the Cp conductor with the feed roll 15, move the arrow H.
Then, hold the Cp conductor so that its tip protrudes from the push chuck 16, and then cut it with the wedge cutter 1.
At step 7, cut the tip of the CP conductor into a wedge shape.

At position G, when the Ae wire 2 has already been heated to a semi-molten state, the pushing chuck 16 is moved linearly in the direction of the arrow H, so that the tip of the CP wire is heated to the Ae 11A2.
As shown in Figure 2, Cu and Ae are placed inside the Aee.
, Sn, or the like is formed and bonded.

Next, the Ae conductor rod section is cooled with cold air discharged from the cooling nozzle 18 installed in the section from The conductor wires are sandwiched and taken out one by one in the L direction. A forced extraction claw 22 for taking out the lead wire 21 is provided at position M. Normally, the lead wire does not reach the M position.

As shown in Fig. 2, the electrolytic capacitor lead wire made by the above-mentioned device has an alloy layer 20 made of Cu, Ae, 8 holes, etc. inside the Ae wire at the joint between the AL7 wire 2 and the CP conductor. Since it is formed internally, there is no external exposure of foreign metals such as Fe + Cu, and there is no scattering of foreign metals such as iron and copper, so there is no risk of leakage current defects or short circuits, which are the electrical characteristics of electrolytic capacitors. Not only can defects be reduced, but also strength variations can be made very stable compared to conventional welding methods.

In addition, the tip of the Cp conductor is wedge-shaped, and the Ae end face has a concave recess 23.
2. When pushing into the interior, a guide action occurs, so the Ae line 2
It has good pushing performance and linear pushing action, which makes it easy to align the Ae wire 2 and Cp conductor, and provides a lead wire with a stable appearance and quality, which has great industrial value. It is something.

Effects of the Invention As described above, according to the present invention, lead wires made of Ae wires and Cp wires with an alloy layer formed at their joints can be automatically manufactured at high speed, and moreover, L wires can be manufactured using a gas flame. In order to join in a semi-molten state, Ae wire and Cp! The bonding alloy layer II is not exposed to the outside, and a lead wire with stable welding strength can be obtained.

Further, according to the configuration of the apparatus of the present invention, Ae, CptlA feeding, and Ae round cutting are performed for manufacturing lead wires.

Lead wires can be manufactured while performing the operations of Ae end face denting, AQn heating, Cp conductor insertion, and lead wire extraction in parallel on the outer periphery of the intermittent table, resulting in extremely high productivity and cost savings. It will be beneficial.

[Brief explanation of drawings]

FIG. 1 is an overall configuration diagram of an embodiment of the electronic component lead wire manufacturing apparatus of the present invention, FIG. 2 is a cross-sectional view of a joint of a lead wire manufactured by the same apparatus, and FIG. Fig. 4 is a perspective view showing the welding equipment part in the conventional welding method, Fig. 5 is a principle diagram showing the conventional welding method, and Fig. 6 is a perspective view of the lead wire produced by the conventional welding method. FIG. 1... Copper-undercoated tin wire (Cp wire), 2...
...Ae line, 4...Feed claw roll, 5...
...A12 chuck, 7...Intermittent table, 8
...Table chuck, 9...Aee
Stick cutter 10... Punch, 12...
・Burner, 15...Feed roll, 16...
...Press chuck, 17... Wedge cutter, 18... Cooling nozzle, 19... Take-out belt. Name of agent: Patent attorney Shigetaka Awano and one other person Funeral map?

Claims (1)

[Claims] An intermittent rotary table section equipped with a plurality of chucks for holding a hoop-shaped first member is arranged approximately in the center of the apparatus,
A first member feeding roll part that sends out the first member around the outer periphery of the table part, and an intermittent rotary table that positions and holds the first member while synchronizing the speed of the first member being sent out and cuts it to a predetermined length. a first member feeding section that feeds the first member so that the first member protrudes into the chuck of the intermittent rotary table section; A second member feeding roll part is provided on the end position side of the burner part and feeds out a hoop-shaped second member, and
A second member feeding pushing part is provided to hold the member, cut it into a predetermined length, and feed it linearly, and the first member protruding from the chuck of the rotary table part is heated to a melted or semi-molten state by the burner part. . A lead wire manufacturing apparatus characterized in that a first member and a second member are brought into contact and joined when the temperature is raised, and the lead wire is taken out from an intermittent rotary table portion after the temperature of the joint portion is lowered.