JP2982498B2 - Method for producing expanded grid for lead-acid battery and cutter for producing the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a manufacturing method and manufacturing cutter that lead or a lead-acid battery expanded grid made by expanding process a sheet made of lead alloy.

[0002]

2. Description of the Related Art In recent years, lead storage batteries have been improved in performance,
It is very effective to reduce the weight of the grid, which accounts for a large part of the weight of the battery.

[0003] As a lightweight grid, an expanded grid for lead-acid batteries, which is made by expanding a sheet made of lead or a lead alloy, is used.

[0004] This expanded lattice 1 is shown in FIG.
As shown in FIG. 3B, the corrugated bent filaments 2 arranged in the row direction are provided in multiple stages so as to form a common plane, and the corrugated curved filaments 2 in adjacent rows are connected to each V in one row. The structure is such that the bottom of the letter-shaped portion 2a and the top of each inverted V-shaped portion 2b in the other row overlap in the thickness direction of the lattice body and are connected by the connecting portion 2c.

[0005] Such an expanded lattice 1 is shown in FIG.
5 , a sheet 4 made of lead or a lead alloy as shown in FIG. 5 is processed using a cutter 3 for manufacturing an expanded grid body for a lead storage battery.

That is, in the cutter 3, the cutting edge 3b of the cutter body 3a is linear as shown in FIG . The cutter 3 with, as shown in FIG. 5, the cuts 5 placed in multiple stages in the row direction like a dashed line on the sheet 4 made of lead or lead alloy, is staggered broken-line cuts 5 of adjacent rows and In such a manner that the half pitch position is shifted. Thereafter, the sheet 4 was extended in a direction orthogonal to the broken line 5 to produce an expanded lattice 1 as shown in FIGS. 3 (A) and 3 (B).

However, an expert having such a structure
In the first lattice body 1, the thickness t is V in the connecting portion 2c.
It is almost determined by the sum of the thicknesses of the V-shaped portion 2a and the inverted V-shaped portion 2b.
The problem is that the ability to hold the active material cannot be improved.
there were.

[0008] Therefore, lead storage to solve such problems.
As shown in FIGS. 6 (A) and 6 (B), an expanded lattice for a battery is shown.
Such a structure has been proposed (J.
No. 4062). Next to this expanded lattice 1
The corrugated bent striated body 2 in the matching row is formed by each V-shaped portion 2 in one row.
a and each inverted V-shaped portion 2b of the other row is arranged in the row direction.
Bent in the thickness direction of the lattice body around the joint 2c, and
The bending direction of each connecting portion 2c in the adjacent row is reversed
I have.

An expandable lead-acid battery having such a structure.
According to the lattice body 1, one of the connecting portions 2c is provided on the lattice body plate surface.
The recesses 2d are formed in the grid body thickness direction in each row of
In addition to the sum of the thicknesses of the V-shaped portion 2a and the inverted V-shaped portion 2b,
And the thickness T of the expanded lattice body 1
It can be thicker than t.

Therefore, the expanded grid body for a lead storage battery
According to No. 1, each concave portion 2c can be filled with an active material,
Holding capacity can be increased.

[0011]

However, FIG.
(A) Expanded lattice 1 having a structure as shown in (B)
Conventionally, an expanded lattice body having a structure shown in FIG.
1 is manufactured in advance, and the adjacent grid of the expanded lattice
Press each connecting part 2c alternately with an uneven press.
And the position of the pressed part at the time of pressing
It is difficult to align, and the shape given after pressing is elastic
May return to its original shape slightly, making molding difficult.
There was a title.

An object of the present invention is to provide an expandable lead-acid battery which is light in weight and capable of increasing the ability to hold an active material.
Expanded grid for lead-acid batteries that can easily manufacture grids
An object of the present invention is to provide a method for manufacturing a body and a cutter for manufacturing the body .

[0013]

Means of the present invention for achieving the above object will be described as follows.

According to the first aspect of the present invention, in the sheet made of lead or a lead alloy, cuts are made in multiple stages in a row direction in a row direction,
And the broken line-shaped cut adjacent rows form staggered half a pitch position to be staggered, thereafter expanding a lead-acid battery manufacturing by extending the sheet in a direction perpendicular to the broken-line cuts in the manufacturing method of the grid, the broken-line cuts put on the seat in the row direction,
It is characterized in that it is inserted in a V-shape in one adjacent row and in an inverted V-shape in the other row.

According to a second aspect of the present invention, there is provided a cutter for manufacturing an expanded grid body for a lead-acid battery for cutting a sheet made of lead or a lead alloy in a row direction along a broken line. It is characterized by being bent in a V-shape as viewed from above.

[0016]

According to the method for manufacturing an expanded grid body for a lead storage battery according to the first aspect of the present invention, a plurality of broken lines are formed in the sheet made of lead or lead alloy in a row direction in a row direction. A half pitch position is shifted so as to be staggered, and then the sheet is extended in a direction orthogonal to a broken line-shaped cut to produce an expanded lattice body. the broken-line cuts put in the direction, placed respectively in a V-shape at one adjacent rows, since in the other row placed in inverted V-shape, if merely extend the sheet
It is possible to easily manufacture an expanded lattice body having a concave portion in the lattice body thickness direction for every other row of each connecting portion on the lattice body plate surface by just rinsing.

Therefore, according to the method for manufacturing an expanded grid of the present invention, a thick expanded grid without increasing the weight of the grid, without significantly changing the manufacturing equipment, and without increasing the number of steps. Simply put it in the sheet
It can be easily manufactured simply by changing the way of making the cut .

According to a second aspect of the present invention, there is provided a cutter for manufacturing an expanded lattice body for a lead storage battery, wherein a blade edge of a cutter body for cutting a sheet made of lead or a lead alloy in a row direction along a broken line is viewed from the front end side. Since it is bent in a V-shape, a cutting process for forming a broken line in a V-shape or an inverted V-shape can be easily performed.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. Parts corresponding to those in FIGS . 3 to 6 are denoted by the same reference numerals.

FIG . 1 shows an embodiment of a cutter 3 for manufacturing an expanded lattice body for a lead storage battery used in the present invention. The cutter 3 has a cutting edge 3b of a cutter body 3a.
Are bent in a V-shape at an angle α when viewed from the front end side.

FIG . 2 shows an embodiment of a method of manufacturing the expanded grid body 1 for a lead storage battery according to the present invention. In the present embodiment, dashed cuts 5 are provided in multiple rows in the row direction in the sheet 4 made of lead or lead alloy, and the ピ ッ チ pitch positions are shifted so that the dashed cuts 5 in adjacent rows are alternated. After that, when the sheet 4 is extended in a direction orthogonal to the broken line-shaped cut 5 to manufacture the expanded grid 1 for a lead-acid battery, the broken line 5 cut into the sheet 4 in the row direction is formed as follows. placed respectively one row adjacent to the V-shape, its reverse V-shape in the other row
Put is.

The operation of forming such a V-shaped or inverted V-shaped cut 5 is performed using, for example, a cutter 3 shown in FIG .

When the expanded lattice body 1 is manufactured in this manner, an expanded lattice body having concave portions 2d in the lattice body thickness direction in every other row of each connecting portion 2c on the lattice body plate surface is manufactured . This can be easily performed simply by extending the sheet 4 .

Therefore, according to such a method of manufacturing an expanded grid, a thick expanded grid can be manufactured without increasing the weight of the grid, without significantly changing the manufacturing equipment, and without increasing the number of steps. To simply sheet 4
It can be easily manufactured only by changing the way of making the cut 5 .

[0025]

As described above, according to the present invention, the following excellent effects can be obtained.

[0026] In the method of manufacturing a lead-acid battery for expanded grid of claim 1, a cut placed in multiple stages in a sheet consisting of lead or lead alloy in the row direction like a dashed line, broken line-shaped cut lines adjacent and A half-pitch position is formed so as to be staggered, and then the sheet is extended in a direction perpendicular to the broken line to produce an expanded lattice body. Are cut in a V-shape on one adjacent line,
In the other row, we put this sheet in an inverted V shape,
By simply extending, it is possible to easily manufacture an expanded lattice body having a recess in the lattice body thickness direction for every other row of each connecting portion on the lattice body plate surface.

Therefore, according to the method for manufacturing an expanded grid of the present invention, a thick expanded grid without increasing the weight of the grid, without significantly changing the manufacturing equipment, and without increasing the number of steps. Simply put it in the sheet
It can be easily manufactured simply by changing the way of making the cut .

According to the second aspect of the present invention, there is provided a cutter for manufacturing an expanded grid body for a lead storage battery, wherein the cutting edge of the cutter body for cutting a sheet made of lead or a lead alloy in a row direction along a broken line is viewed from the front end side. Since it is bent in a V-shape, a cutting process for forming a broken line in a V-shape or an inverted V-shape can be easily performed.

[Brief description of the drawings]

FIG. 1 is a perspective view of a cutter used in an embodiment of the present invention.
You.

FIG. 2 shows an expanded lattice body for a lead storage battery according to the present invention .
Dashed cuts in the sheet in the manufacturing method
It is a principal part top view which shows an example of one.

FIG. 3A is a conventional expanded grid body for a lead storage battery.
(B) is a sectional view taken along line YY of (A).
You.

FIG. 4 is a perspective view of a conventional cutter.

FIG. 5 shows a conventional lead-acid storage battery shown in FIGS.
Dashed lines for sheets in the method of manufacturing spanned grids
It is a principal part top view which shows how to make a shape cut.

FIG. 6 is a lead-expansion battery expander shown in FIGS.
Expanded grid for conventional lead-acid battery with improved grid
(A) Expanding the lead storage battery
The main part front view of a lattice body, (B) is XX sectional drawing of (A).
It is.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 expanded lattice body 2 corrugated bent linear body 2a V-shaped part 2b inverted V-shaped part 2c connecting part 2d concave part 3 cutter for manufacturing expanded lattice body for lead-acid battery 3a cutter body 3b cutting edge 4 sheet made of lead or lead alloy 5 Broken line

Claims (2)

(57) [Claims] 1. A sheet made of lead or a lead alloy in a row direction.
Multi-stage breaks in broken lines, and broken lines in adjacent rows
The half-pitch position so that the cuts are staggered
After that, the sheet is cut in the shape of the broken line.
For a lead-acid battery manufactured by extending it in a direction
In the method for producing a spanned lattice , a broken line cut in the sheet in the row direction is formed by adjacent lines.
In the other row, insert in V-shape, and in the other row, reverse
Expander for lead-acid battery characterized by being inserted in a V-shape
Manufacturing method of the lattice. 2. A sheet made of lead or a lead alloy in a row direction.
Expandable lead-acid battery for making dashed cuts
In a cutter for manufacturing a lattice body, the cutting edge of the cutter body is bent in a V-shape when viewed from the tip side.
Expanded rating for lead-acid batteries, characterized by being
Cutter for child body production.