One common problem during the operation of fully automatic granular packing machines is incomplete or loose sealing, which typically occurs at the heat sealing roller section. This issue can usually be resolved by addressing three areas: heat adjustment, spring pressure, and sealing roller cleanliness.
Heat adjustment issues
Improper temperature setting is a primary cause of loose sealing. The temperature may be either too high or too low for the packaging material being used. The solution is to select the appropriate heat sealing temperature according to the type and thickness of the packaging film. Correct temperature setting is critical to achieving a consistent seal.
Spring pressure issues
Insufficient or uneven pressure from the push springs can also lead to incomplete sealing. The pressure on each heat sealing roller should be adjusted to ensure even contact across the sealing width, which improves seal quality and prevents leaks.
Sealing roller cleanliness and condition
The condition of the heat sealing rollers directly affects sealing performance. If the roller surfaces are uneven, dirty, or worn, the seal may be weak or inconsistent. In such cases, the rollers should be cleaned thoroughly, repaired, or replaced as needed. For heat sealing rollers and related precision components, Hansheng Automation can provide custom machining according to equipment specifications to help maintain stable sealing performance.
