JPS6155737B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for manufacturing lead-acid battery plates with high output, high energy density, and long life.

When heat welding a resin body and a matte body, which are part of a base body, using a conventional heat welding machine, the electrode plate with the matte body in contact is stored in a metal case 7', and the metal case 7' is heated in the stored state. It was attached to a welding machine and heat welded the parts to be welded. When heat welding the welded parts of electrode plates that have wet paste, the metal case 7' is heated only to a part of the periphery of the metal case 7' in order to exhaust the large amount of steam generated during welding of the welded parts. A wall was built. That is, as shown in FIG. 3, wall portions 1' are provided at the locations where both sides of the electrode plates touch, and no wall portions are provided at the locations where the upper and lower portions of the electrode plates are in contact, leaving them open.
The steam generated was discharged from here. For this reason, the heat welding process for electrode plates involves two steps: heat welding the parts to be welded located inside the electrode plate and on both sides of the outer periphery of the electrode plate, and heat welding the parts to be welded located at the upper and lower ends of the outer periphery of the electrode plate. Two steps were required. Furthermore, when the electrode plates have wet paste, a large amount of steam is generated during welding of the parts to be welded, resulting in poor welding in some cases.

The present invention eliminates the above-mentioned drawbacks and makes the heat welding process a single step, greatly improving production efficiency.

An embodiment of the present invention will be described.

A paste 4 is applied to a base that integrates a lead or lead alloy grid body 2 and a resin body 3 made of thermoplastic synthetic resin.
The electrode plate 6 with the mat body 5 abutted on its front and back surfaces is housed in a metal case 7. Next, the metal case 7 is placed in a heat welding device in this state, and the resin body 3, which is a part of the electrode plate, and the mat body 5 are heat welded. By the way, when welding the welded parts of the electrode plates 6 containing wet paste by heat, a large amount of steam is generated during the heat welding. Conventionally, a part of the wall around the metal case 7' is opened and the steam is discharged from the opening, but in this embodiment, the steam is discharged from the upper mold recess 8 provided in the thermal welding device. It is discharged through a plurality of small holes 9. After heat welding, while the welded part is being melted by heating, the upper mold 10 of the heat welding machine is removed, and the welded part is pressed in a cooling press and then cooled to produce an electrode plate.

According to the present invention, by using a heat welding device equipped with a metal case 7 and a heat welding machine upper mold 10, the heat welding process that conventionally required two steps can be reduced to one process, greatly increasing production efficiency. I was able to improve.

In addition, by fixing all the welded parts on the outer periphery of the electrode plate in a fixed shape with the wall of the metal case according to the present invention, and simultaneously heat-welding the welded parts located on both sides and the upper and lower ends of the electrode plate 6, the electrode plate 6 The heat-welded finish on the outer periphery of the product has become much more beautiful than before. Furthermore, poor welding of electrode plates due to steam generation has also been eliminated.

1 is a wall where both sides of the electrode plate touch, 7' is a metal case, 11 is a heat welding machine lower mold, 12 is a heat welding machine mold support rod, 13 is an embedded heater, 14 is a heat welding machine press shaft, 15 is a convex part of the upper mold, 16 and 16' are concave parts of the metal case, 17 and 17' are convex parts of the metal case, 18 is a wall part that the upper and lower parts of the electrode plate contact, and 19 is a position part of the electrode plate lug. .

As mentioned above, the present invention greatly improves production efficiency by eliminating the heat welding process for producing electrode plates in one step, and there is no welding failure in the welded parts, and the finish of heat welding on the outer periphery of the electrode plates is improved. It has great industrial value as it looks beautiful on a large cloth.

[Brief explanation of the drawing]

Figure 1 is a plan view of an electrode plate obtained by filling an integrated base of a grid body and a resin body with paste, and Figure 2 is a plan view of an electrode plate obtained by filling a paste into an integrated base of a grid body and a resin body.
3 is a perspective sectional view of a conventional metal case, FIG. 4 is a perspective view of a metal case according to the present invention, FIG. 5 is a schematic diagram showing the state of heat welding according to the present invention, and FIG. 6 is a schematic diagram of the upper mold of the heat welding machine used in the present invention. 1 is the wall where both sides of the electrode plate touch, 7 is the metal case, 8 is the upper mold recess, 9 is the small hole, 10 is the upper mold of the heat welding machine, 15 is the upper mold protrusion, 16 is the metal case 17 is a concave portion, 17 is a protrusion of the metal case, 18 is a wall portion where the upper and lower parts of the electrode plate come into contact, and 19 is a portion where the electrode plate lug is located.

Claims (1)

[Claims] 1 A base made by integrating a lead or lead alloy grid body and a resin body is filled with paste, and an electrode plate with a matte body abutted on the front and back sides is housed in a metal case as a mating mold for a heat welding machine. In an apparatus for producing electrode plates for lead-acid batteries, in which a mat body and a resin body are thermally welded together by the operation of the mold, the upper and lower parts of the electrode plate, which have electrode plate lugs formed around the metal case, come into contact with each other. A metal case having a wall portion where the wall portion and both sides of the electrode plate are in contact with each other and having an uneven portion inside, and a mold having an uneven portion inside and a small hole for discharging generated steam. An apparatus for producing electrode plates for lead-acid batteries, characterized by comprising: