JPH08329930A - Manufacturing equipment of electrode plate for battery - Google Patents

Abstract

PURPOSE: To substantially increase the production capacity of an electrode plate for a battery by intermittently supplying a metal plate on the belt-shaped electrode plate continuously running, and pressing them with a roller to stick the metal plate to the electrode plate by synchronous drive control. CONSTITUTION: A belt-shaped electrode plate 12 is unwound from a supply drum 1 through a tension adjusting device 20 while tension is adjusted, and continuously run. A sticking metal plate 18 unwound from a metal hoop supply part 3 is held with a metal plate supply drum 5 which is intermittently rotating, cut in the specified dimension with a metal plate cutting blade 6, supplied to a metal plate sticking drum 7 with a pusher 4, and held by vacuum suction. The peripheral speed of the drum 5 is completely synchronized with the running speed of the electrode plate 12, and the metal plate 18 is stuck to the metal plate sticking part of the electrode plate 12 by applying pressure between the drum 7 and an accepting roller 8. The presence of the metal plate 18 in the electrode plate 12 after stacking the metal plate 12 was completed is confirmed with a metal plate presence detecting sensor 10, then the electrode plate 12 is wound in a winding part 2. Working of the electrode plate 12 is continuously conducted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for adhering a small piece of metal or the like to an elongated electrode plate and fixing a lead wire to the electrode plate.

[0002]

2. Description of the Related Art Conventionally, as shown in FIGS. 2, 3 and 4, an apparatus of this type has been used.

As shown in FIG. 2, a hoop-shaped continuous electrode plate 12 is fed from the unwinding part 1 and a sticking position 17 of a sticking metal plate 18 of lithium or the like (hereinafter, abbreviated as a metal plate).
Is detected by the sticking position detection sensor 9, and the electrode plate 1
2 is once stopped at a predetermined position and the metal plate 18 is attached. As shown in FIG. 3, the metal plate 18 is cut into a quadrangle having a width of about 15 mm and a length of about 50 mm, lifted by vacuum suction by the vacuum suction unit 13, and supplied from a direction perpendicular to the traveling direction of the electrode plate 12. . After that, the metal plate 18 and the electrode plate 12 are provided on the surface of the mold 1 having a large number of polygonal pyramidal irregularities.
5 and the vacuum suction part 13 which also serves as the temporary pressurizing part are pressed against each other.
The vacuum suction unit 13 uses an air cylinder as a drive source. However, the swinging cutting blade 16 when chucking
Since the thickness of the metal plate 18 is large, it is necessary to provide the temporary pressurizing portion / vacuum suction portion 13 with a relief for allowing the displacement. (Hereinafter, this step is referred to as “temporary attachment because the attachment state of the metal plate is insufficient”).

After the temporary attachment, the presence / absence of the metal plate 18 is detected by the metal plate presence / absence detection sensor 10, and then the electrode plate 12 is used.
4 and, as shown in FIG. 4, by sandwiching it between the pressing part 21 and the receiving roller 8 having a large number of concavo-convex parts in the shape of a polygonal pyramid on its lower surface, the electrode plate 12 and the metal plate Adhesion is performed once again so that 18 and 18 are sufficiently pressure-bonded (hereinafter, this step is referred to as main attachment). As described above, in the conventional device, the electrode plate 12 is intermittently run, and the temporary attachment and the main attachment are simultaneously performed at different positions.

[0005]

However, since the air cylinder is required as a source of the pressing force of the pasting portion in order to paste the metal with the above-mentioned device, the electrode plate is stopped and processed at each time. Must. Therefore, the facility using this method cannot significantly improve the productivity. Furthermore, a large space is required because the two steps of temporary attachment and main attachment are required. In addition, the intermittent running of the electrode plate as described above causes the tension applied to the electrode plate to fluctuate, which causes winding deviation in the width direction when the electrode plate is wound, which adversely affects the stability of product dimensions in the next process. give.

The present invention is intended to solve the above problems,
It is an object of the present invention to provide an apparatus for manufacturing a battery electrode plate which has good productivity and can maintain the stability of product dimensions in the next step.

[0007]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a delivery section for delivering a strip-shaped electrode plate at a constant speed, a first roller and a second roller which face each other with the electrode plate interposed therebetween.
Roller and a lead-in portion that draws in the electrode plate at a constant speed, the first roller supplies a member onto the electrode plate, and the first roller and the second roller include the member and the electrode plate. Is configured to be pressed.

[0008]

According to the present invention, since the first roller and the second roller having the positional relationship between the member and the electrode plate can be brought into pressure contact with each other over substantially the entire surface, the electrode plate 12 is continuously run. While processing, it is possible to improve equipment capacity. Further, since the electrode plate can be processed during continuous running, the electrode plate can be continuously wound, so that tension fluctuation can be suppressed and winding deviation of the electrode plate during winding can be prevented.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG.

A hoop-shaped electrode plate 12 is fed out from the unwinding portion 1 driven by a servomotor, but in order to prevent the electrode plate 12 from slackening or being applied with an abnormal tension, the left end portion of FIG. As shown, a tension adjusting device 20 is attached. At the time of start, the electrode plate 12 is slowly fed out and gradually increased in speed to a constant speed. The electrode plate 12 sent out from the unwinding unit 1.
Is continuously sent to the metal plate attaching mechanism part, and the metal plate attaching position 17 where the active material is peeled off is detected by the attaching position detecting sensor 9 in the middle thereof. There is.

The metal plate 18 is set in the unwinding portion 3 in a hoop shape and is sent out. The metal plate 18 sent out is
It is held by the metal plate supply drum 5 having a vacuum suction function, and the metal plate supply drum 5 is intermittently rotated at an angle determined by the hoop width and the cutting dimension, whereby the metal plate cutting blade 6
By pressing, it is cut into a certain size. The cut metal plate 18 is supplied to the metal plate attaching drum 7 by the comb-shaped pusher 4 inside the metal plate supply drum 5.

The metal plate supply drum 5 is formed with a hole for vacuum suction and a hole through which the comb portion of the pusher 4 for supplying the metal plate 18 after cutting to a predetermined size to the metal plate attaching drum 7 is passed. The cutting blade 6 and the cutting blade 6 stop at a position where they do not hit each other during cutting. Furthermore, ± 0.
In order to secure a metal plate cutting dimension accuracy of 5 mm or less, the metal plate supply drum 5 is intermittently driven by using a servo motor having a high rotation stop accuracy.

The metal plate attaching drum 7 is a metal plate 18 supplied from the metal plate supply drum 5 by the pusher 4.
Is held by vacuum suction, and the signal for detecting the metal plate attachment position 17 by the attachment position detection sensor 9 and the metal plate attachment drum 7 between the attachment position detection sensor 9 and the unwinding unit 1 Based on the signal of the encoder mounted on the roller 11 having the same outer diameter as the outer diameter, the outer peripheral speed of the metal attachment drum 7 and the traveling speed of the electrode plate 12 are perfectly matched by the intermittent motion using the servo motor. Then, as shown in FIG. 5, between the metal plate attaching drum 7 and the receiving roller 8 having a large number of polygonal pyramids in a positional relationship of sandwiching the metal plate 18 and the electrode plate 12, the metal plate attaching portion is pressed. A metal plate 18 is attached to 17.

The pressure is adjusted by adjusting the mutual positions of the wedges in the pair of wedge portions 19 having the rollers 8 having a large number of polygonal pyramids so that the amount of elevation of the receiving roller 8 having a large number of polygonal pyramids is finely adjusted. The gap between the metal plate attaching drum 7 having a function of absorbing the variation of the plate thickness and the roller 8 having a large number of polygonal pyramids is adjusted to about 0.01 mm unit by adjusting the elastic body such as hard urethane rubber. Do by adjusting.

The electrode plate on which the metal plate has been attached is wound around the winding section 2 after the presence or absence of the metal plate 18 is confirmed by the metal plate presence / absence detecting sensor 10. The winding portion 2 prevents the electrode plate 12 from extending or breaking due to impact,
According to the constant tension setting, the electrode plate 12 is wound while controlling the winding tension.

As described above, the metal plate supply drum 5 and the metal plate attachment drum 7 are intermittently driven, the electrode plate 12 is continuously run, and their synchronous drive control is performed to enable continuous processing of the electrode plate 12. With this, the metal plate attachment pitch is 400 mm
In this case, when the productivity of the apparatus of the present embodiment is compared with the productivity of the conventional machine, the production capacity of the conventional machine can be improved about 5 times as much as 10 m / min.

[0017]

According to the present invention, a member such as a metal plate can be pressure-bonded in one step while the electrode plate is continuously running, and the time for stopping the electrode plate can be eliminated. The production capacity can be dramatically improved. Furthermore, since the electrode plate can be processed during continuous traveling, fluctuations in the tension of the electrode plate can be suppressed and winding deviation when winding the electrode plate can be prevented.

[Brief description of drawings]

FIG. 1 is a conceptual diagram showing a main configuration of a manufacturing apparatus according to an embodiment of the present invention.

FIG. 2 is a schematic view of a sticking part of the device in the embodiment of the present invention.

FIG. 3 is a conceptual diagram showing a main configuration of a conventional device.

FIG. 4 is a schematic view of a temporary attachment part of a conventional device.

FIG. 5 is a schematic view of a main attachment portion of a conventional device.

[Explanation of symbols]

 1 Pole plate unwinding part 2 Pole plate unwinding part 3 Metal hoop unwinding part 4 Pusher 5 Metal plate feeding drum 6 Metal plate cutting blade 7 Metal plate pasting drum 8 Receiving roller 9 Sticking position detection sensor 10 Metal plate presence / absence Sensor for detection 11 Roller with encoder 12 Electrode plate 13 Vacuum suction part 14 Sticking part 15 Mold having many polygonal pyramids 16 Swinging cutting blade 17 Metal plate sticking part 18 Sticking metal plate 19 Pair Wedge part 20 Tension stabilizer 21 Pressurizing part

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Toshio Ueda 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd.

Claims (3)

[Claims] 1. A device for fixing a member to a strip-shaped electrode plate, which comprises a delivery section for delivering the strip-shaped electrode plate at a constant speed, and a first roller and a second roller which face each other with the electrode plate sandwiched therebetween. And a retracting portion that retracts the electrode plate at a constant speed,
An apparatus for manufacturing a battery electrode plate, wherein the first roller supplies a member onto the electrode plate, and the first roller and the second roller press the member and the electrode plate. 2. A means for supplying an elongated member onto the third roller, the third roller being provided at a position facing the first roller so as not to sandwich the strip-shaped electrode plate, and the member. 3. The apparatus for manufacturing a battery electrode plate according to claim 1, further comprising: means for cutting on the roller 3. 3. A tension stabilizing device for keeping the tension of the electrode plate constant,
A means for detecting the position where the member is attached, a means for detecting the transfer speed of the electrode plate, a servo motor as a drive source for the sending portion and the retracting portion, and the servo motor is controlled by signals from the respective means. The manufacturing apparatus for a battery electrode plate according to claim 1, further comprising: