JPS5926593Y2 - Electrolytic capacitor electrode tab automatic mounting device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an apparatus for automatically attaching electrode tabs to electrode foils of small electrolytic capacitors with terminals in the same direction for transistor circuits.

The electrode terminals of these capacitors are made by welding a lead wire to an aluminum rod, and then attaching an electrode tab, which is a flattened part of the aluminum rod, to the electrode foil that constitutes the anode and cathode by stetting, spot welding, It is fixed by methods such as ultrasonic welding and cold welding.

By the way, the above-mentioned electrode tabs have low mechanical strength, so some of them are deformed during the cutting, washing, transportation, etc. processes before being sent to the automatic manufacturing machine. arise.

This requires post-installation inspection, and it is difficult from a quality control standpoint to automatically attach the electrode tab to the electrode foil and wrap it in the same machine.

The purpose of this invention is to solve the above problem, and when attaching an electrode tab to an electrode foil, the position of the electrode tab with respect to the electrode foil is detected and only the one in the fixed position is attached. This is an automatic attachment device for electrode tabs.

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

In Fig. 1, reference numeral 1 denotes a rotary disk which is rotated in the direction of arrow a by a drive shaft 2, and No. 1 station or No. 6 station is provided on the circumferential portion of the surface thereof divided into six positions. , the rotary disk 1 rotates moderately by 60 degrees.

No. 091 is an electrode tab T supply station, and No. 4 is an electrode tab T attachment station.

Reference numeral 3 denotes a mounting base provided close to the periphery of the rotary disc 1, and the electrode foil 4 moves in a moderate manner on the mounting base 3 in the direction of the arrow A in synchronization with the moderate rotation of the rotary disc 1. .

5 is a position detection jig for the electrode tab T. When the No. 4 station detects that the position of the electrode tab T on the electrode foil is the normal position, the electrode mounting jig 6 lowers and detects the electrode tab T. Attach to electrode foil 4.

When the position detection jig 5 detects that the position of the electrode tab T is not the normal position, the electrode mounting jig 6 does not descend, and the electrode tab T is carried by the rotary disk 1 as shown by the dotted line, and is moved to the No. 6 station. will be released into the defective product box.

FIG. 2 shows an embodiment of the present invention in which the electrode tab T is attached to the electrode foil 4 by stellating attachment.

As shown in FIG. 4, the electrode tab T consists of a flat part 7 obtained by crushing an aluminum rod into a flat shape and a welded part 8 in which a lead wire 9 is welded.

As shown in FIG. 3, the position detection jig 5 has a
A groove 10 having a width and depth slightly larger than the width and thickness of the flat part 7 is provided, and the tip of the groove 10 has a detection hole 12 through which a detection rod 11 passes, and an electrode mounting jig 6. A working hole 14 is provided through which the working rod 13 passes.

The detection rod 11 is biased by a spring 15 so that its tip slightly protrudes from the lower surface of the position detection jig 5.

Next, its operation will be explained with reference to FIG.

When the electrode tab T stops on the electrode foil 4 at the No. 4 station, the position detection jig 5 descends as shown by arrow C (FIG. 1).

When the electrode tab T is in the normal position, its flat portion 7 is housed in the groove 10, as shown at 19, and the detection rod 11 is pushed up.

Therefore, the distance d between the mounting base 3 and the position detection jig 5 is equal to the thickness of the electrode foil 4, and the position of the detection rod 11 is raised by the pushed-up height h.

The electrode mounting jig 6 is lowered by a signal detected by a photoelectric device or the like to d and h, and the working rod 13 is moved to the electrode tab T.
is stellated onto the electrode foil 4.

When the Stellating is completed, the electrode mounting jig 6 rises,
Subsequently, the position detection jig 5 rises, and the electrode foil 4 moves a predetermined length and then stops.

During this time, the rotary disk 1 rotates by one degree, and the electrode tab T held by the No. 003 station enters the mounting position of the No. 4 station.

In addition, if there is a defective electrode tab T and the position on the electrode foil at No. 4 station is too deep, d is the thickness of the electrode foil 4 and the flat part of the electrode tab T, as shown in FIG. 7 in thickness, which is larger than d in the normal case, and h is smaller.

Moreover, when the position on the electrode foil is too shallow, as shown in 2, d remains the same but h becomes smaller.

Furthermore, when the position of the electrode tab T is shifted to either the left or right side, d becomes large and h becomes small, as in the case of E and oblique direction.

In this way, if it is detected by a photoelectric device or the like that one of the values d and h is not a normal value, the electrode mounting jig 6 will not be lowered, and therefore, Stellating will not be performed.

Then, the electrode mounting jig 6 and the position detection jig 5 rise,
The rotary disk 1 rotates one degree and sends the electrode tab T that is not stellated to the No. 5 station, and sends the electrode tab T that is not stellated to the No. 4 station to the next electrode tab T at the No. 3 station.
enters.

In the above embodiments, the method of automatically supplying electrode tabs using a rotary disk has been described, but it goes without saying that other automatic supply methods can also be employed in the apparatus of the present invention.

In short, the present invention is a device that automatically attaches the electrode tab T that is moderately supplied to the mounting base 3 to the electrode foil 4 that moves moderately on the mounting base 3. A position detection jig 5 including a concave groove 10 and a detection rod 11, and the position detection jig 5 detects that the position of the electrode tab T on the electrode foil 4 is a normal position. Since it is equipped with an electrode attachment jig 6 that operates only when the electrode tab is in use, only normal electrode tabs are attached, and defective products are ignored.

Therefore, it is possible to automate the attachment of electrode tabs to electrode foils, and as a result, it is possible to continue with the subsequent automatic winding process of electrode foils, which contributes to fully automating the manufacturing of capacitor elements. It's large.

[Brief explanation of drawings]

Fig. 1 is an overall perspective view of an embodiment of the present invention, Fig. 2 is a diagram showing the main parts of an embodiment of the present invention, where A is a side view, the opening is a front view, and Fig. 3 is a part of a position detection jig. Figure 4 is a diagram showing the electrode tab, Figure 5 is a diagram illustrating the function of the present invention, and Figure 5 is a diagram showing the operation of the present invention. indicates when the position of the electrode tab is normal, and indicates when the position of the electrode tab is not normal. 1... Rotating disk, 2... Drive shaft, 3...
...Mounting base, 4...Electrode foil, 5...
・Position detection jig, 6... Electrode mounting jig, 7...
...Flat part, 8...Welded part, 9...
・Lead wire, 10... Concave groove, 11...
Detection rod, 12...Detection hole 1.13...
...Working rod, 14...Working hole, 15...
...Spring.

Claims (1)

[Scope of utility model registration request] A device for automatically attaching an electrode tab moderately supplied to the mounting base to an electrode foil moving moderately on the mounting base, comprising a concave groove for accommodating the electrode tab and a detection rod. The method is characterized by comprising a position detection jig and an electrode mounting jig that operates only when the position detection jig detects that the position of the electrode tab on the electrode foil is a normal position. Automatic electrode tab mounting device for electrolytic capacitors.