Principle of vacuum glue filling machine
Vacuum glue filling machine is a device used in the fields of electronic components, optoelectronic components, automotive parts, etc. Its principle is to use the pressure difference under vacuum state to evenly pour glue onto the surface or interior of the product, in order to achieve sealing, fixing or thermal conductivity effects. Below, we will provide a detailed introduction to the working principle of the vacuum glue filling machine.
Firstly, the vacuum glue filling machine extracts the air inside the working chamber through a vacuum pump, creating a certain degree of vacuum inside the working chamber. In a vacuum state, the surface tension of the adhesive decreases, making it easier for the adhesive to penetrate the surface or interior of the product. Meanwhile, due to the rarefaction of gas molecules in a vacuum state, bubbles are more easily expelled from the surface or interior of the product during the gluing process, thereby improving the quality of the gluing.
Secondly, the vacuum gluing machine places the product in the studio and, through a pre-set program control system, extracts the glue from the glue storage tank to the gluing head. Then, under vacuum, the glue is evenly poured onto the surface or interior of the product. In this process, due to the reduced influence of gas under vacuum, the flow of glue is more uniform, ensuring the uniformity and consistency of the glue filling.
Finally, the vacuum glue filling machine restores normal pressure inside the working chamber after the glue filling is completed, allowing the glue on the surface or inside of the product to solidify. Under normal pressure, the surface tension of the adhesive increases, so that the adhesive will not continue to penetrate, and bubbles will no longer be expelled from the surface or interior of the product. This achieves the sealing, fixing, or thermal conductivity effect on the surface or inside of the product.
In general, vacuum glue filling machines utilize the pressure difference under vacuum conditions to make it easier for glue to penetrate the surface or interior of the product, and ensure the quality and consistency of glue filling by eliminating bubbles and evenly filling the glue. At the same time, after the glue filling is completed, the glue is cured by restoring normal pressure, thereby achieving the sealing, fixing or thermal conductivity effect of the product.
In summary, the working principle of the vacuum glue filling machine is based on the pressure difference under vacuum conditions. By controlling the flow and curing process of the glue, it achieves the glue filling effect on the surface or inside of the product. This working principle not only improves the quality and consistency of glue filling, but is also widely used in product manufacturing in various fields.