JPH01258363A - Casting mold for casting electrode substrate for lead acid battery - Google Patents

Abstract

PURPOSE:To substantially reduce the manufacturing cost of plural types of electrode substrates with the lugs thereof changed as desired by constituting a casting mold with a split mold for casting a substrate grid part and another split mold for casting a substrate lug part, and so placing the lug pattern of the lug part casting split mold as to he freely displacable for the grid pattern of the grid part casting split mold. CONSTITUTION:A substrate casting mold 1 comprising a hollow cylindrical drum freely rotatable with a rotary axis 2 is constituted with a split mold 1A of cylindrical vessel form occupying the most area of the mold 1 and having large width and an opening at one end for casting the substrate grid part, and a split mold 1B of cylindrical vessel form occupying the remaining area and having small width and an opening at one end. Then, when the casting mold 1 is used for casting substrates having a lug at different positions or substrates having so called inner or outer lugs, the position of the lug pattern (b) of the split mold 1B is deviated to one end of one edge of the corresponding the grid frame of the grid pattern (a) of the split mold 1A and coupled to this mold 1A, and set with a securing fitting 3. Then, a casting process is started, thereby manufacturing a substrate having a lug. In the case of a substrate with an inner lug, the pattern (b) is located further inside from the one end before a casting process.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a mold for casting a storage battery electrode substrate.

[Conventional technology]

Conventionally, as electrode substrates for storage batteries, there are at least two types of substrates having different ear positions. Furthermore, even if the ear position is the same, there are multiple types of substrates with different shapes and sizes. In order to cast such different kinds of substrates, it is common to prepare substrate casting molds corresponding to these substrates.

For example, in a conventional continuous casting machine, a plurality of substrate patterns of the same shape for electrode substrate casting are arranged in a concave manner on the circumferential surface of a rotating drum. It is customary to make earphones for different shapes and sizes of ears.

[Problem to be solved by the invention]

Conventional electrode substrate molds of this kind have the disadvantage of significantly increasing mold manufacturing costs because they must be prepared each time the position, shape, and size of the ears are different, as described above.

[Means to solve the problem]

The present invention solves the above-mentioned conventional disadvantages, and even when casting electrode substrates with different ear positions as described above, one mold is sufficient.
Furthermore, the present invention provides a mold for casting M battery electrode substrates, which significantly reduces mold production costs by making multiple types of molds, even when casting electrode substrates with different ear positions, ear sizes, and shapes. The present invention is characterized in that a mold for casting a storage battery electrode substrate is constructed such that a split mold for casting a board lattice part and at least one split mold for casting a board edge part are mutually displaceable or detachable.

[For production]

When casting a plurality of types of electrode substrates with different positions of ears, molten lead is filled and cast with the split mold for casting the board lattice parts attached to the split mold for casting the board lattice parts. In such a case, an electrode substrate is obtained that has ears that are located on one side of the upper edge of the outer lattice of the lattice pattern of the substrate lattice part split type and that protrude integrally. When casting a board whose ears are located on the other side of the upper edge of the lattice frame of the lattice section, the lugs pattern of the split mold for casting the board lattice section should be changed to the lattice pattern of the mold for casting the board lattice section. When the upper edge of the pattern is displaced to the other side and casting is performed in this state, a cast substrate having the ears on the other side is obtained. In addition, the position of the ears on the substrate lattice part of the casting mold of one common casting mold,
When attaching and casting any one of multiple types of substrate ear casting molds with ear patterns of different ear shapes and sizes, use the different type of substrate ear casting molds used. Various electrode substrates with ears depending on the type are available.

〔Example〕

Next, embodiments of the present invention will be described.

The mold for casting the storage battery electrode substrate of the present invention is made separately into a split mold for casting the lattice part, which is the main part of the electrode board, and a split mold for casting the ears, which are a part of the board. When these split molds are displaceably or detachably attached to each other, a substrate having one electrode substrate pattern in which the grid pattern of the split mold for casting the board lattice portion and the ear pattern of the split mold for casting the board edge portion are in communication with each other. This becomes a casting mold, and by injecting and filling the pattern with molten lead or lead alloy, and cooling it, a cast substrate is obtained.

The split mold for casting the board lattice part and the split mold for casting the board edge part are:
Both may be flat or drum-shaped.

Normally, multiple substrates of the same shape are cast at a time, so the split mold for casting the substrate lattice part has a plurality of recessed lattice patterns arranged on its surface. The split mold for casting the board edge portion has a plurality of groove patterns arranged on its surface corresponding to the lattice pattern. In this case, in order to continuously cast the same electrode plate substrate, a rotating drum type mold used in a conventional continuous casting machine is configured into the above-mentioned split mold and used.

Conventionally, it has been difficult to cast substrates with ears of the same size and shape but with different positions, or to cast substrates with ears of the same size and shape but with different shapes and sizes. ,
It was necessary to prepare separate board casting molds each having a corresponding board pattern, but according to the present invention, as described above, the board casting molds can be made into the two split molds. The split mold for casting the board lattice part which constitutes the main part of the board, and the part mold for casting the board ear part which constitutes a part thereof, the ear pattern of which corresponds to the lattice pattern of the mold for casting the board lattice part. If it is displaceably mounted, various substrates with different lugs can be obtained when cast with the tab set at each desired position.

In addition, for casting various types of electrode plates with different positions, shapes, and sizes of the edges of the board, we use split molds for making board edges gJ, each having different ear patterns with different positions, shapes, and sizes of the edges. If you prepare different numbers of the split molds for casting the board lattice part and prepare a common split mold for casting the board lattice part, then you can make a desired one of these split molds with different ear patterns. Connect and set the lattice pattern and the ear pattern together, and cast in this state.After that, if it is desired to cast an electrode substrate with a different ear pattern, use the split mold with the different ear pattern. Used for installation in place of the split mold described above.

In this way, in order to cast multiple types of electrode plate substrates with different desired ear positions, shapes, and dimensions, it is only necessary to prepare multiple molds for casting the substrate ear portions, which constitute small parts of the substrate mold. As a result, the manufacturing cost of molds for casting various electrode plate substrates can be significantly reduced compared to the conventional method, and it is also possible to cast various electrode plate substrates in which the positions of the holes are minutely changed.

Next, an example in which the present invention is applied to a mold for continuous casting of electrode plates and substrates will be explained with reference to the accompanying drawings.

In the drawings, reference numeral 1 indicates a mold for casting a storage battery electrode substrate according to the present invention, and the mold for casting a substrate 1 has a central rotation shaft 2 extending horizontally.
The rotary drum type mold 1 consists of a hollow cylindrical drum that can be rotated freely, and the rotary drum type mold 1 consists of a split mold 18 for casting a substrate edge, which is a wide cylindrical container that occupies most of the mold and is open at one end, and the remaining part. It consists of a split mold 1B for casting the board edge part, which is a cylindrical container with a narrow width and an opening at one end surface, and the split mold 1B is formed on the outer periphery of the peripheral edge for fitting that surrounds the open end surface of the peripheral wall to the split mold 1. A shallow peripheral wall surrounding the opening end face of 1B is fitted, and both are removably connected to each other with a connecting tool 3 such as a bolt to form a rotating drum type substrate casting mold 1 with a hollow space 4 formed inside. It is. In the internal space 4, a rotating shaft 2 is provided.
The drum mold is cooled by communicating with a water passage 5 passing through the center of the drum mold. On the outer circumferential surface of the split mold 1A for casting the substrate lattice part, a large number of lattice patterns a consisting of an outer lattice frame and lattice bars intersecting each other in the vertical and horizontal directions inside the lattice frame are arranged in recesses endlessly over the entire circumference. A plurality of lug patterns b, b... corresponding to the number of the lattice patterns a, a... are formed at equal intervals on the outer circumferential surface of the split mold 1B for casting board lug parts, and They are connected to each of the ear patterns b and arranged in a concave shape in a predetermined concave shape such as a rectangular shape.

Further, according to the present invention, the front circular end face of the split mold 1B for casting the board edge portion is provided with bolts for the l running metal fittings 3 arranged at equal intervals on its circumference. The general hole is a long hole 6 extending in the circumferential direction, and when fixing the split mold 1B by inserting the bolt 3 and screwing it into the screw hole of the split mold 1A,
The split mold 1B is rotatable left and right within the range of the elongated hole 6, and each lug pattern b is positioned at a desired position relative to the opposite edge of the outer lattice frame of the lattice pattern a of the corresponding split mold 1B. I was able to set it.

Thus, in order to cast a substrate with ears in different positions, for example, a substrate with an outer ear and a substrate with an inner ear, with the mold 1 of the present invention, when fitting the split mold 1B into the split mold 1A, As shown by the solid line in FIG. 1, the position of the lug pattern b of the split mold 1B is shifted to one side of one edge of the lattice frame of the corresponding lattice pattern b of the split mold 1. It is fitted into the split mold 1^, set using the fixture 3, and cast in this state to obtain an electrode substrate with an outer ring. In addition, the position of the ear pattern b of the split mold 1B is located considerably inside of one edge 1@ of the lattice frame of the corresponding lattice pattern b of the split mold 1A, as shown by imaginary lines in FIG. If you set it up again and cast in this state, you can cast an electrode substrate with an inner ear. In these continuous castings, as shown in the third figure, the mold 1 is installed with one end open side of the bathtub 7 closed, and a button or lead alloy is placed in the closed molten metal recess 7a. While injecting and filling the molten metal, the mold 1 is rotated in the direction of the arrow in a cooled state by passing water into the hollow 4, thereby forming an electrode substrate consisting of a grid pattern a and a lug pattern b that are combined with each other. The pattern is filled with molten metal and cooled, and as the pattern rotates, electrode substrates 8 are successively connected to the strips 8.

In order to cast multiple types of electrode substrates with different ear shapes and sizes, for example, if the ear shape is the first
In order to cast an electrode substrate having, for example, L-shaped ears, unlike the rectangular shape shown in the figure, an L-shaped ear pattern b' is used as the split mold 1B for casting the substrate ears, as shown in the fourth figure. A split mold 1" having a concave surface is prepared in advance. Thus, in order to manufacture an electrode substrate having L-shaped ears, the split mold 1B having the rectangular ear pattern b shown in the first figure is used as the split mold 1". The mold 1 is replaced with mold 1 and installed, thereby forming the continuous casting machine shown in the third figure, and by casting with this, electrode substrates having L-shaped tools can be continuously cast.

Split mold 1 for casting the board lattice part and split mold 1 for casting the board edge part
The mutually abutting end surfaces 10 and 11 with B, as shown in FIG. This ensures that an electrode substrate of a predetermined shape can be accurately cast without causing any misalignment between the split mold 1A drum and the split mold 1B drum even after long-term use.

In addition, instead of the above-mentioned embodiment, an arcuate long groove for receiving the tip of a bolt is provided on the end surface of the board lattice part @ joined to the long-distance mold 1B, and the board ear part @ long-distance mold 1B is used for bolt insertion. Even if a screw hole is provided and the electrode substrates are attached to each other so as to be slidably displaced, it is possible to similarly cast a plurality of electrode substrates having different ear positions using one mold of the present invention.

The above is a detailed description of an example of a drum-type mold, but it is made of a long and wide flat plate, and has a large number of lattice pattern rows recessed and arranged on its surface, and has a cooling intermediate part inside. A split mold and a separate mold for casting a board ear part having a plurality of correspondingly arranged ear patterns in the same manner and having an intermediate part for cooling are attached to each other in a detachable manner, and preferably, their joints are It is also possible to use a mold for casting an electrode substrate in the form of a longitudinal plate, in which the parts are slidable relative to each other. It is needless to mention in detail that by using a common mold and selecting and using any split mold for casting the board edges, various types of electrode boards can be cast in the same way as in the case of drum-type molds. , 4 [Effects of the Invention] The mold for casting an electrode substrate for a storage battery of the present invention is composed of a split mold for casting a board lattice part and a split mold for casting a board edge part, and the ears of the split mold for casting a board edge part are Since the pattern is displaceably attached to the lattice pattern of the split mold for casting the substrate lattice portion, this single mold can be used to manufacture multiple types of electrode substrates with desired ear positions, compared to conventional methods. , casting can be performed with significantly reduced mold manufacturing costs. In addition, only the split mold for casting the board edge portion, which occupies only a small area of the entire mold, is adjusted to the position of the edge,
Multiple types are made according to differences in shape, size, etc.
The split mold for casting the substrate lattice part, which occupies a large area of the entire mold, is 1.
Two split molds are prepared in advance, and this split mold for casting the board lattice part is used in common, and a desired one from the plurality of split molds of the former can be freely replaced and used. Therefore, it has the effect of significantly reducing mold manufacturing costs in casting various substrates.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a mold for casting a storage battery electrode substrate according to an embodiment of the present invention, Fig. 2 is a central sectional view of Fig. 1, and Fig. 3 is a side view of a continuous casting machine equipped with the same mold. FIG. 4 shows a perspective view of a modified example, and FIG. 5 shows a plan view of a part of the mold of the present invention. 1... Mold of the present invention 1A... Split mold for casting board lattice part a... Lattice pattern 1B... Split mold for casting board edge part, b'... Ear pattern 2... Rotating shaft 3...
Fixing bracket 6... Long hole 7... Bathtub Patent applicant Furukawa Battery Co., Ltd. Figure 1 Figure 2 Figure 3 Figure 4

Claims (1)

[Scope of Claims] 1. The mold for casting the storage battery electrode substrate is characterized in that the split mold for casting the board lattice part and at least one split mold for casting the board edge part are configured to be mutually displaceable or detachable. Mold for casting storage battery electrode substrates. 2. The split mold for casting the substrate lattice portion has at least one recessed lattice pattern, and the split mold for casting the board edge portion has at least one recessed pattern. The mold described in. 3. The mold according to claim 1, wherein the split mold for casting the board edge part is movable with respect to the split mold for casting the board lattice part. 4. A claim in which a plurality of types of split molds for casting the substrate lattice portions having different ear positions, shapes, sizes, etc. are prepared, and these are replaceably attached to the split mold for casting the board lattice portions. 1. The mold according to 1. 5. The mold for casting the storage battery electrode substrate is a rotating drum type mold, and most of the rotating drum is used as a split mold for casting the board lattice part, and one part is used as a split mold for casting the board edge part, and the part of the rotating drum is used as a split mold for casting the board lattice part. The split drum for part casting has a plurality of lattice patterns arranged in a recessed manner on its outer peripheral surface, and the split mold drum for substrate edge part casting has a plurality of recessed and arranged lattice patterns in its outer peripheral surface. The mold according to claim 1. 6. A claim in which the split mold for casting the substrate part is movably connected to the split mold for casting the board lattice part via a bolt of a fixing fitting inserted through a long hole provided in the former split mold. 5. The mold according to 5.