The lead acid battery plate pasting stage involves applying active material to the grid. The grid acts as both a mechanical support and an electrical conductor. This step creates the plate. The plate is the main component of a lead-acid battery.
There are two ways to combine grids and active material as necessary:
Belt pasting is a technique used to paste individual panels resulting from grids’ melting process.
In Drum pasting continuous strips of grids are produced with expansion, punching, or continuous casting systems.
Lead Acid Battery Plate Pasting – Belt Paster
It has a cotton strip. This strip supports the grids when pasting. There is also a hopper. It comes with toothed and paddle rollers. These rollers feed the paste onto the grid.
Two grids are set in a straight line on a mechanical separator. They are placed on a cotton belt. This belt moves them to the area where paste (active material) is applied. After that, they go to the transfer line. The belt then goes through scraping, washing, and pressing areas. This process gets the belt ready for the next pasting cycle.
An automatic system feeds the hopper. It has level control and rotating rollers. This system doses the right amount of active material. The material is used on the grid below.
This system works well with melted grids. It has a belt made of layered needled cotton. Even when the belt touches the paste, it hardly sticks to it.
Lead Acid Battery Plate Pasting – Drum Pasting Machine
In continuous strip grids, the active material is covered with paper. This is to handle the cutting process. It makes using a cotton belt unnecessary. This is because it helps prevent sticking. So, a surface-hardened steel drum is used instead. It lasts much longer. This means there’s no need to worry about belt wear costs.
The lead acid battery plate pasting machine will have a body made out of a steel drum. It will feature controlled speed. Additionally, it will have a hopper designed to measure out the active material. It will need drums to hold and spread the paste on the plate surfaces. First, a paper layer is placed on the drum. Then, the strip of grids moves under the hopper to get the right amount of paste. While moving at the drum’s speed, it goes under another rubber cylinder. This cylinder centers and presses the paper on the top side.
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