JPH0216849Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a mold for a lattice body for a lead-acid battery, which is used when casting a lattice body for lead-acid batteries for automobiles, etc.

[Prior Art] In general, lead-acid battery lattice bodies have a common outer rib shape and the inner rib shape, such as the thickness or number of lattices, is changed to produce lead-acid batteries with multiple specifications. . A conventional mold for casting such a lattice body consists of a fixed mold and a movable mold, and each mold is used to form an external bone forming surface that forms the thick bone portion of the lattice body, the outer bone, and an inner bone that forms the thin bone portion of the lattice body. It consisted of one continuous mold surface with the forming mold surface.

[Problems to be solved by the invention] In the above-mentioned molds, the fixed mold and the movable mold have continuous external and internal osteogenic mold surfaces in one mold. Therefore, when casting lattice bodies with the same outer bone shape but different inner bone shapes, it was necessary to make many types of molds in advance, and it was difficult to make the molds. The problem was that the costs were high.

An object of the present invention is to provide a grid for lead-acid batteries that reduces mold manufacturing costs.

[Means for Solving the Problems] The present invention will be described with reference to FIGS. 1 to 6 showing embodiments thereof. The invention includes a fixed mold 1 and a movable mold. A mold for a lattice body for a lead-acid battery, in which a lattice body is cast by pouring hot water of lead or lead alloy into the lattice body, in which a mold hole is formed inside the mold, and in the present invention, a fixed mold 1 is used. and a movable type,
Each has a main mold member 2 having an external osteogenic mold surface 5 forming the outer rib of the lattice body, and a secondary mold member disposed within the main mold member 2 having an internal osteogenic mold surface 8 forming the internal rib of the lattice body. The mold member 3 is also provided.

[Function] In the mold for the lattice body for a lead-acid battery, the fixed mold and the movable mold are respectively formed into a main mold member having an external bone forming mold surface and a secondary mold member having an internal bone forming mold surface and disposed within the main mold member. When manufacturing a mold for a lattice body with a common outer bone shape but different inner bone shapes, one main mold member is manufactured, and each sub-mold member is made in accordance with the number of specifications. All that is required is to manufacture the mold member, and the main mold member can be shared, thereby reducing mold manufacturing costs. In addition, the mold change operation can be easily performed by simply replacing the sub-mold member.

[Embodiments] Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. 1 to 6 of the drawings.

The mold according to the present invention is composed of a fixed mold 1 that is fixed by appropriate means, and a movable mold that comes into contact with and separates from the fixed mold 1 while being guided by a guide pin or the like (not shown). Movable type is fixed type 1
Since the structure is similar to that of the fixed type 1, for convenience of explanation, the fixed type 1 will be explained. As shown in FIGS. 1 to 4, the fixed mold 1 consists of a main mold member 2 and a sub-mold member 3, and the main mold member 2 is fixed to the work site by appropriate means. . This main mold member 2
These include a sprue surface 4 forming a sprue for introducing hot water of lead or lead alloy on a surface facing a movable mold (not shown), an external rib forming mold surface 5 for forming an external rib of the lattice body, and the external rib forming mold surface 5. It has a positioning recess 6 formed inside the mold surface 5 to position and fix the sub-mold member 3. A plurality of screw holes 7 are formed inside the positioning recess 6 of the main mold member 2. A sub mold member 3 is fitted into the positioning recess 6 of the main mold member 2, and the sub mold member 3 is fixed to the main mold member 2 by bolts 9 screwed into screw holes 7 of the main mold member 2. There is. Further, the sub mold member 3 is formed with an inner bone forming mold surface 8 for forming the inner bones of the lattice body. In this way, the mold surface of the fixed mold 1 is composed of the external bone forming mold surface 5 and the internal bone forming mold surface 8. A mold cavity is formed by aligning the mold surface of the fixed mold 1 with the mold surface of a movable mold constructed in the same manner.

Using the mold of the above example, Fig. 4 a and b
As shown in FIG. 2, when casting lattice bodies C1 or C2 with different specifications, which are made up of an outer bone A having a common shape and an inner bone B1 or B2 having a different shape, the process is as follows.
First, to explain the case of casting the lattice body C1, the sub-mold member 3 for forming the inner bone B1 is installed in the main mold member 2 of the fixed mold 1 and the movable mold (not shown), and then the movable mold member 3 is attached to the fixed mold 1. A mold hole is formed inside the mold by bringing them into contact with each other, and lead or lead alloy hot water is poured into the mold hole. Next, to explain the case of casting another lattice body C2, the sub mold member 3 for forming the inner bone B1, which is attached to the main mold member 2 of the fixed mold 1 and the movable mold, is used for forming the inner bone B2. After replacing the sub-mold member 3, the movable part is brought into contact with the fixed mold 1 to form a mold hole therein, and lead or lead alloy hot water is poured into the mold hole.

In the above embodiment, the bolt 9 is screwed into the screw hole 7 formed in the main mold member 2 to fix the sub mold member 3 to the main mold member 2, but the present invention is not limited to this. Instead, as shown in FIG.
Alternatively, it may be tightened with a nut 11.

[Effects of the invention] As described above, according to the invention, the fixed mold and the movable mold are arranged in the main mold member having an external bone forming mold surface and an internal bone forming mold surface, respectively. When manufacturing molds for lattice bodies with the same external bone shape but different inner bone shapes, one main mold member is manufactured, and other mold members are made according to the number of specifications. It is only necessary to manufacture a sub-mold member for each, and the main mold member can be shared, which has the advantage of reducing mold manufacturing costs. Further, there is an advantage that the mold change work can be easily carried out by simply replacing the sub-mold member.

[Brief explanation of the drawing]

FIG. 1 is a front view showing the mold surface of the fixed mold of the mold of the present invention, and FIGS. 2 to 4 are perspective views showing the state in which the sub mold member is positioned on the main mold member of the fixed mold according to the present invention, respectively. , a front view and a partial sectional view, FIGS. 5a and 5b are longitudinal sectional views showing a lattice body cast by the mold of the present invention, respectively, and FIG. 6 is a partial sectional view showing another embodiment of the present invention. It is. 1...Fixed mold, 2...Main mold member, 3...Sub mold member, 5...External bone forming mold surface, 8...Internal bone forming mold surface.

Claims (1)

[Claims for Utility Model Registration] A fixed mold and a movable mold are provided, the movable mold is brought into contact with the fixed mold to form a mold hole inside, and lead or lead alloy hot water is poured into the mold hole. In a lead-acid battery lattice mold for casting a lattice body, the fixed mold and the movable mold respectively include a main mold member having an outer bone forming surface forming an outer rib of the lattice body, and a main mold member having an outer rib forming surface forming an outer rib of the lattice body. 1. A mold for a lattice body for a lead-acid battery, comprising: a sub-mold member disposed within the main mold member and having an inner bone-forming mold surface for forming a lattice body.