JPS5832466B2 - Paste type electrode plate press equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a press device that applies pressure to a paste-type electrode plate immediately after applying paste to adjust its thickness.

Paste-type electrode plates, for example, electrode plates used in lead-acid batteries, are generally subjected to roll pressing immediately after being filled with a paste active material in order to adjust their thickness and surface condition.

Furthermore, there are many automatic paste machines on the market that are equipped with a press device having a pair of rolls for the above-mentioned purpose.

However, the conventional press equipment used for the above purpose does not have the function of removing the water present in the electrode plate, and paste may be left on the surface of the pressure roll when adjusting the thickness of the electrode plate. Since the paste had the disadvantage of being prone to adhesion, the rolls had to be washed each time, or the rolls were doused with water beforehand to prevent the paste from adhering to the rolls.

Originally, in electrode plates for lead-acid batteries, after filling a paste-like active material, the moisture present in the electrode plate is sufficiently removed, and the structure of the paste is densified by applying press pressure. It is known that battery life can be significantly improved.

However, in reality, conventional press equipment for thickness adjustment not only removes moisture, but also prevents paste from adhering by flowing water through the pressurized part of the roll. I couldn't hope for that at all.

In the press device of the present invention, a lining made of highly absorbent material such as felt or sponge rubber is disposed on the surface of a pair of pressure rolls, and press pressure is applied to the paste-type electrode plate through this lining. As a result, the moisture in the electrode plate is absorbed into the lining part, and the moisture in this lining is collected by an inhaler (vacuum device) etc. through a suction hood part that is close to or in contact with the lining surface at a position different from the raised part. This not only improves battery life by absorbing and removing unnecessary moisture present in the electrode plates, but also absorbs and removes the active material that has peeled off from the electrode plate surface after applying the paste. The lining surface, which serves as a substantial pressurizing surface, can always be maintained in a normal state without causing any adhesion such as the like.

An embodiment of the press apparatus of the present invention will be described below.

FIG. 1 is a side view of a press apparatus in an embodiment, and FIG. 2 is a front view.

In these figures, 1° 11 is 1 with water-absorbing linings 2 and 2' made of felt, for example, arranged on the applied EJ surface.
By passing the electrode plate 4, which has just been coated with a paste-like active material on the core material or lattice, through the pressure part 3, which is set at a predetermined interval with a pair of pressure rolls, the rolls face each other and are set at a predetermined interval. This is to adjust the surface condition of the electrode plate.

The linings 2, 2' of each pressure roll are provided with suction hoods 5, 5' for dewatering, which are located in a different position from the pressure part 3 and are adjacent to or in contact with it.

6 and 6' are suction pipes that connect this suction hood to an inhaler (not shown), and 7 and 7' are rotating shafts of the respective rolls 1 and 1'.

Immediately after applying the paste, the electrode plate 4 is rotated as shown by the arrow in Figure 1.
It is fed into the E part 3, where it is pressurized from both the upper and lower sides by the linings 2, 2/ to adjust the thickness and surface condition, and unnecessary water is absorbed by the water-absorbent lining and removed.

Each lining 2, 2' that has absorbed moisture from the electrode plate 4 reaches the position of the suction hood 5, 5' as it rotates, where the absorbed moisture is absorbed by the suction force exerted by a suction machine or the like on the lining surface. If paste or fallen active material is attached, this will also be removed by suction.

Therefore, after passing through the suction hoods 5, 5', the linings 2, 2' again have water absorbing ability and their surfaces are cleaned, so that they can come into contact with the electrode plates again and pressurize them.

In this way, in the device of the present invention, the lining continuously absorbs water and removes fallen substances from the paste-type electrode plate, dehydrates the lining, and removes deposits by suction.
The thickness and surface of paste-type electrode plates are continuously adjusted while removing unnecessary moisture and surface deposits, making paste-type electrode plates with excellent performance and low moisture content more efficient. There are some benefits that are often gained.

Note that the water-absorbent lining is not limited to felt, but can also be made of sponge rubber that has water-absorbing properties and pressurizing capabilities.

[Brief explanation of the drawing]

FIG. 1 is a side view of a press device in an embodiment of the present invention;
FIG. 2 is a front view thereof. 1.1'...pressure roll, 2,2'...
・Water-absorbent lining, 3... Pressure part, 4...
...Paste type electrode plate, 5.5'...Suction hood.

Claims (1)

[Scope of Claims] 1 A pair of pressure rolls are provided to adjust the thickness by applying pressure to the electrode plate immediately after applying the paste-like active material to the grid or core material, and a pressure roller is provided on the pressure surface of each roll. A lining with water absorption properties is provided, and a suction hood is provided at a position different from the electrode plate support portion of the lining, close to or in contact with the lining surface to dehydrate and remove deposits from the lining by suction. A paste-type electrode plate pressing device characterized by: 2. The paste-type electrode plate pressing device according to claim 1, wherein the water-absorbing lining is made of felt or sponge rubber.