JPS62117269A - Plate grid body and its mold for lead storage battery - Google Patents

Abstract

PURPOSE:To reduce the thickness and the weight of a grid by arranging spindle sections servable as pouring gates in the longitudinal and lateral crosspieces. CONSTITUTION:A plurality of pyramid or conical spindle sections 5 are formed at one side of a longitudinal crosspiece while thin crosspieces 6 are extended from the tip of the spindle section 5 to the adjoining longitudinal crosspieces. Lateral crosspieces 7 are arranged at several points while being crossed perpendicularly with the longitudinal crosspiece for the purpose of reinforcement. Consequently, the feeding head (the pressure of molten lead alloy flowed from above a mold when casting) will function effectively to the engraved spindle section 5 so that the molten metal easily flows to all corners irrespectively of small cross-section of the small crosspiece 6. While even upon collapse of demolding agent at the small crosspiece section, coupling sections are formed in the gap in the shape of thin casting burr resulting in a grid of perfect performance having no good appearance.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention solves the problem of breakage of small crosspieces of plate grids for lead-acid batteries, and improves the ease of application of mold release agent. ! 'i easika J'3. J: The present invention provides a lattice shape J3 that allows the lattice to be made thinner and easier to tap 17, and a mold thereof.

Conventional technology Methods for manufacturing lattices used in lead plates for lead-acid batteries include casting lattices, in which molten lead alloy is poured into a lattice-shaped mold, and then cooled and solidified, and sheet-shaped lead plates. An extended lattice with slits made and stretched to 'FJ'zR, and
Treat the lead alloy plate as a grid! There is one player, Rakuryo, that I created.

Problems to be Solved by the Invention When manufacturing cast gratings, mold release agent is applied to the #R mold several times a day, but if too much l1Mt mold agent is applied or the application method is incorrect, the production of the gratings until t2i. When M increases, the mold release agent breaks down and the grid breaks into small pieces, which often causes the grid to become unusable. The defective lattices generated in this way are re-melted and re-produced, but there is a problem in that the production volume cannot be increased. However, in the conventional lattice shape, the cross-sectional area of Fl could not be made very small due to hot water temperature, and there was a limit to how thin and lightweight the lattice could be.

Means for Solving the Problems The present invention provides a frame forming an outer periphery and opposing tl of the frame.
A vertical or horizontal 1 of the brown textbook hung between them, a plurality of weight-shaped parts provided on one of the vertical or horizontal bars, and a tip of the weight-shaped part; The object of the present invention is to provide an electrode plate lattice body for a lead-acid battery having small crosspieces reaching up to
Multiple vertical or horizontal grooves provided horizontally between the ribs,
Subugumi or base 1 [1 A cone-shaped engraving provided on the lower side (in the direction of gravity) and a groove for a small crosspiece that extends in multiple directions from the tip of the cone-shaped engraving and reaches an adjacent groove. The present invention provides a mold for a lead-acid battery electrode grid.

Function: In the mold for the scraped lattice J3 and groove for lead-acid batteries of the present invention, three weight-shaped portions, which are 10 of the small bars, are formed on the vertical or horizontal bars, and the small bars can be made extremely thin. Since the small part (1) extends in multiple directions from the tip of the conical part, even if the coin part 'C--mold release agent of the mold collapses, the molten lead alloy will continue along the small crosspiece in an irregular shape or in a linear shape. The TEPCO pieces flow in a bamboo-like shape and are formed in the shape of cast burrs (a), so there is no part of the current collection failure, and the grid can be made thinner and lighter.

Embodiment As an embodiment of the present invention, a so-called two-beveled lattice, which has a shape r:vi in which two lattices are integrally joined at the foot, will be described.

In the figure, reference numeral 1 denotes a frame that forms the outer periphery of the grid, and a part of the outer periphery of the frame has ears 2 that serve as the entrance and exit port for the current, and when housed in the battery case as an electrode plate, there are ears on the branches. A foot portion 3 is formed to support the electrode plate, and the foot portion 3 is formed during tti construction.
The two grids are joined together. This foot is active'
After filling and drying the JkJ quality paste, it is made 1 in the center and 2
It becomes one electrode plate.

Reference numeral 4 designates a plurality of vertical bars which are suspended in parallel between the upper and lower H' rods on the inner peripheral side of the frame 1, and are formed by grooves carved in the mold in the horizontal direction. (That is, during casting, the grid is formed horizontally. > On one side of the vertical bar, a cone-shaped or cone-shaped cone shaped part 5 with multiple corners 11 is formed, and a thin small bar 6 extends from the tip of the conical part 5 to reach the next vertical bar. There is.

In addition, 7 is a point perpendicular to the above-mentioned vertical beam (2 in the example).
This is a reinforcing horizontal beam installed at a certain point.

To cover such a grid with Vs'+, frame 1 and vertical bar 4
3, which has a relatively large cross-sectional area, is carved in such a way that the vertical bar runs horizontally into the mold, and is continuous with the lower side of the groove for the vertical bar (in the direction of gravity) to form a conical shape. A mold is used in which a pyramid-shaped or conical-shaped carving is provided to form the part 5, and a plurality of small cross-section grooves with a small cross-sectional area are formed in a fan shape from the tip of this conical-shaped carved part. By doing this, the weight-shaped carved portion becomes 40 mm with respect to the small cross section, and the flow of the lagoon (molten lead alloy) to the small cross section with a small cross-sectional area is improved. Note that this small crosspiece may be formed in the shape of a wire mesh in which a large number of small crosspieces intersect, and the groove forming the small crosspiece may be provided only on one side of the mold.
, zmm, and can be formed into a net shape with a pitch of 1mm.

In the above example, the vertical bars were provided with a weight-shaped part in order to cast the grid horizontally, but the grid was cast in an upright state C.
In case of casting, a cone-shaped part is formed on the lower side of the drawing [1].

Effects of the Invention The present invention is based on the above-mentioned configuration, and the pressure shoulder force (casting 1 The pressure of the molten lead alloy poured from the top of the mold to the top of the mold affects the f1 effect, and the cross-sectional area of the small crosspiece is small, making it easy for the molten metal to flow in every corner.
Even if the mold release agent collapses at the thin small crosspieces, a thin flash-like connection will be formed in the gap between the holes, creating a lattice with absolutely no gaps in terms of performance, even if it looks bad! The mold release agent can be applied simply by applying a certain amount of mold release agent. Automation makes it possible to produce a large number of book-shaped light hanging frames with stable quality.

[Brief explanation of drawings]

Fig. 1 is a pressure surface view showing an example of a temporary storage for lead-acid batteries in Mokuto + 111, Fig. 2 is a partially enlarged view of the grid shown in Fig. 1, and Fig. 3 is the same as in Fig. 2. There is a Δ line view C. 1...Frame body 4...Vertical beam 5...
... Cone-shaped part 6 ... Upper part 17 ...
...Horizontal 1'X 1 times large 7 sword 'f3WJ t lid A

Claims (2)

[Claims] (1) A plurality of vertical or horizontal bars suspended between a frame forming the outer periphery and opposing bars of the frame, and a plurality of weight-shaped parts provided on one of the vertical or horizontal 1. and an electrode plate lattice body for a lead-acid battery, comprising small bars extending in multiple directions from the tip of the weight-shaped part. (2) A frame groove forming the outer periphery, a plurality of vertical or horizontal frame grooves provided horizontally between the frame grooves, and the lower side (in the direction of gravity) of the vertical or horizontal frame grooves. 1. A mold for an electrode plate lattice for a lead-acid battery, comprising a cone-shaped engraving provided in the top and a groove for small crosspieces extending in multiple directions from the tip of the cone-shaped engraving.